It's only partially about the frog itself. It's the fact that his posters are:>Self-Pitying Robots who absolutely refuse to better their situation and whine daily telling you their woes for attention-whoring>Mmeme cultists who take the internet far too seriously and think that Sargon of Akkad will take them to Valhalla if they're able to fill half the catalogue of every board with their green diety. Fills boards they venture to with shitposts, asks for rare pepes>Obnoxious self-important rude people who feel the need to enforce frogculture across 4chan because reddit told them to and/or use frogs to deliberately edge people into responding to them instead of posting quality threads worth replying to, which is what ends up coming on /bant/ the most often. Spams threads that don't agree with them and tries to slide them off the board
A Frogposter isn't simply someone who posts Pepe from time to time, it's those borderline avatarfags who for some reason want to paint 4chan with him and are ceaseless in their efforts to do so unless banned. Think about the reason we dumped Rageface and locked the horsefuckers behind the gates of a containment board; it's because their communities became insufferable, and Pepe has been insufferable for five years now but is only beginning to slow down and if it weren't for a concentrated effort to resist him, /bant/ would have become /r9k2/. The people posting him ARE largely bad, and those that use his image innocently deserve little sympathy for associating with a cancer image.
Especially early on in /bant/'s life we had to deal with /r9k/ attempting to commandeer the board and spam threads, but for a while afterward were able to keep the frogs under control, but now their presence on /bant/ is 24/7, more than almost anything else here, and it encourages a culture of whining, shitposting, and acting like a dick for attention.