I think there's a nuance here that it isn't that people "turned" on Taylor - it's that the group who've been incessantly, ceaselessly gunning for him have ground him down.
Taylor always targeted Very Online Group A with his slightly cutesy, fanon-y edge - which works very well in some contexts, less well in others. But the very act of aiming at that group meant he had a target on his back from Very Online Group B who really hate Very Online Group A.
See why after ten years and a dozen writers, it was suddenly a problem that Barbara was Batgirl. He'd been marked as An Enemy.