Plus, you have the whole slippery slope of "where does it become a request, and where is it just a themed thread"
first post: "Here, I'll post a bunch of rei-chan pics in this thread"
first post: "This is a rei-chan thread!"
first post: "rei-chan itt"
first post: "this is my best rei-chan pic. what are your favorites, /h/?"
first post: "everybody post your favorite rei-chan pics!"
first post: "let's post rei-chan pics"
first post: "post rei-chan in this thread"
first post: "give me all of your rei-chan pics"
mean, which ones of these are too "request"-ish? I think themed
threads are great and well enjoyed by boards, even when they may tread
over towards /r/ territory.
Honestly, when you post an evangelion
picture and say "evangelion is awesome", there's an implicit request
there, and people will post more eva in the thread - does the exact
wording really matter? Isn't that just being anal?