Same experience. So much promise that the way it collapses is disappointing, almost angry-making. I even gave it a second try thinking that maybe I'd just missed something. Nope.
It's good, but didn't leave that big of an impression on me, maybe because I didn't know all the SCP stuff beforehand, I just liked qntm's other works so I read it.
Antimemetics remains a top 10 all-time though.