Strong grammar skills isn't the same as comprehending, though. Being able to write, being able to write well--is also not the same as comprehending what someone else has written. Let alone what someone means by what they've written.
"thatguyfromthatwebsite" seems to have read and interpreted the language properties of the greentext, but was not able to comprehend it, not able to take one single step beyond the text to what the author intends it to mean.
Most of the posts that come across my feed there are lengthy analysis of writing that show they understand it and also have critical thinking skills; which is why I say that.
Maybe. I don't know how their algorithms work. I only follow 2 people: Puchiko and P.M. Seymour and I hardly actually see them on Tumblr itself π€·π»ββοΈ
I'm clearly not a fan of Spez (I'm here, aren't I?), but people constantly exaggerate the editing incident.
The fact is that he took a bunch of comments that said "fuck u/Spez" and made them say fuck [the commenter].
That's a problem because it demonstrates what could happen with more subtle edits. It creates reliability issues. But those more subtle edits aren't what actually happened. People constantly take the potential for harmful abuse and act like the harmful abuse actually happened.
Counterpoint: the potential for harmful abuse from a source that has proven itself willing and capable of it, can in itself be harmful abuse. With that action Spez pointed out "your reality is mine. I can make you say anything I want and there's nothing you can do about it." So, then, people stopped saying things, one of the contributing factors to which was the fact that Spez could just sockpuppet your account whenever he wanted, to say anything at all.
That sounds like an abusive relationship to me. It creates reliability issues like you said, it breaks the bond of trust, and that won't be restored. The damage is done at this point regardless whether he ever took it farther than the initial threat.