SCP Foundation

I don't really have time right now for more detailed critique, but sections like this:

Any visual media pertaining to SCP-3398 or the mention of the hotel’s full name induces a memetic effect to its subject that convinces said subjects of being able to experience gratifying activities at the hotel, thus compelling individuals to then seek residence at the estate.

or

Amnestics has also proved to be effective in relieving the memetic effect.

Break immersion slightly.
Otherwise, I feel like the twist was a little too on-the nose. Maybe draw out the reveals just a little tiny bit more.

The SCProcs are a little mundane and a bit too wordy for what is effectively basic operation for an anomalous location (keep people away, don't let people hear about it). Thus, I feel like these could use a bit of trimming to move through them a bit faster.

SCP-3398 is contained at its location of discovery.

"at its location of discovery" could more simply be in situ.

two (2) armed personnel with resistance to antimemetics at all times. Two (2) additional

The number (#) notation thing really only makes sense with certain or specific measurements, you wouldn't use it to denote whole people (disregarding all the old articles which do this (mostly) erroneously).

Also "antimemes" or "antimemetic hazards" would be the word(s).

The first paragraph as a whole does meander a bit. I feel as though a fence would be enough to deter people - it seems it's piling on magic-brain-stuff-protected personnel for no real reason, and 'maintenance' is a terrible excuse considering you have two people stationed outside a random dilapidated building 24/7 with no obvious signs of ongoing work. If the building itself is antimemetic, that should deter 99.9% of random passerby from taking notice of it….having people stand there is going to draw moreattention. Roping it off and declaring it is condemned or unsafe should work just fine.

Besides, having it contained in this manner would give it more of a haunted or 'creepy' location vibe, I feel, setting the general tone earlier on.

SCP-3398 is an extradimensional hotel

I think this is a poor way to describe the anomaly. The hotel itself isn't extradimensional, but its interior has extradimensional properties. Something more to the point would be:

Because the primary effect of the hotel are those elements.

On this note though, one thing that really stood out to me was the memetic/antimemetic effects: it seems like a pair of tacked-on qualities that aren't really intrinsic to the overall story. They seem only to exist to more or less preemptively answer the questions of "how does it draw in people" (the memetic effect) and "how does it not get discovered" (antimemetic cloaking).

This detracts from the article, I feel, because the former (attracting memes) is a cheap trope that really only exists to provide victims/cannon odder for the anomaly, when there are plenty of other ways to get characters where they're needed to be. Not to mention there are much more interesting visuals and effects to be had later on…it gets bogged down in explaining how people are lured to it, and exactly how long it lasts and yadda yadda…why can't people simply enter it of their own volition?

As for the antimemetic effect, I feel like it goes into boring exposition regarding how it interplays with the memetic effect - and again, none of this really has a lot of bearing on the ensuing story, save for a few throwaway lines at the start of one of the logs.

As an aside, I would also note that lumping in more fantastical buzzwords like this (and Humes) really only weighs on suspension of disbelief when taken altogether, which never really works for me from a horror perspective. The further away it's pushed from being realistic the harder it is to really become invested in the world you're crafting. Those kind of things do work well in some places, but I don't think they're used effectively, and just end up being a distraction.

(on a related note, I'd also say -1 is a little overcomplicated as well, but anyways.)

The resulting floor contains an extradimensional corridor (current accounted length: 3km) that contains elevators in places that would normally contain a hotel room. The actual hotel rooms are extremely sporadic, and is normally overtaken by appliances typically seen in elevator structures.

Is awkward. I would restructure a bit:

mainly because…idk "appliances in elevators" is kind of a strange thing to say? You could maybe stand to have something more odd or evocative here, or detailing in what ways rooms are including the elevators, but it's not really needed.

Oh. You guys can't hear him?

Not an issue, but did want to note that even though I don't think the compulsion-effect is needed, this bit of dialogue does a nice job of portraying a rapidly devolving mental state.

There's… only one button.

"only one floor" would be a better fit - he does state there is also n open button later.

This is worse than prison. And I've fucking been there.

The second sentence is easily gleaned from the first, it just seems like poor exposition.

Alright. I want you to take a sample of one of the cables.

I would think they'd ask for perhaps a closer look before this point? Or, at least, only after it became apparent that they might be composed of something they shouldn't be, thus prompting them to ask for a sample…it just seems strange to sample something that seems to be composed of ordinary material like this (when nothing else is being sampled).

[D-26821 pushes on the "open" button. More elevators are revealed.]

Kinda vague..is it another corridor hosting elevators, or back-to-back elevators opening into each other?

D-26821 this, D-26821 that- I have a fucking name, you pieces of shit, fu-[static] Fuck.

This kind of thing has been hashed on so many times in other works that it just elicits an eyeroll.

Altogether though, the character was pretty basic, which would be alright, but having the thing be (secretly) alive didn't really do much for me. I think its extradimensional properties; with endless elevators, forever going up, empty shafts into the darkness/unknown are the more visceral traits could stand to be focused on, in the same vein as SCP-1555 and SCP-186.

I really have to note though that this is a fucking killer line:

D: I found my room.

It does lose a bit of impact as its used later on - in fact I feel like it'd make for an incredible wham line to end the whole thing on.