Yeah, Seohyun basically seemed to be super duper focused on the idol game that it didn't look like she was having fun. It's only been recent(a year or two ago) that she's let loose and became the best Soshi member after Sica left.
GAF hates Hyogre shippers, we've had one or two Hyoyeon stans before but one of them got banned and just disappeared off the map though IIRC it was more than likely that they were the same person haha.
Syoung is quite honestly bland, her shtick was being the "food" queen of Soshi and that's literally it. She had no other talents besides dancing so she couldn't do a Yoona and succeed in something else.
Sunny... yeah, the red hair was the worst.
Finally, as a former Fany stan... 2013-14 was a great year for her. She finally stopped being that dumb, ditzy, "your average" California valley girl BS and embraced her own greatness. Unfortunately for her, everybody lost interest once she started dating a 2PM member. On the other hand, I actually don't know why GAF hates her. Everything I've read about her during my stanning days pointed to the fact that she was a cool person at least.