I think Quin (bunny boy)is only beaten by Atugia and maybe Azy when it comes to being least popular/liked companion. And only reason those two could be last is because one is abandoned red headed child and Wasp only came out recently. Scrach that, even If Azzy is probably my least liked companion, she is still probably more popular since... I got nothing. She is so bland ...
Still, it is not that Bubbles wrote him wrong. Quinn has miss fortune of being a boy that only tops, is sometimes a jackass and his playstyle not really meshing with how people like to play. Still, while I can see why he is unpopular, I do not see how he is a bad per say. My only major personal gripe is that he only tops, but that is not really a fault of the character. Same way where Brienne only being a sub is not a fault in itself.
What problem could people have with him that he is so disliked here?
No since her author Bubbles already has a companion in form of Quin.
She is planned on getting relationship expansion.