Couple o' things that make me avoid a group:
1: People who make typos ALOT. Yes, i know that many different languages are spoken in FH, but can you at least watch your fingers when you type?
2: In. ac. ti. vi. .ty
3: Too many fnafs. I'm a HUGE fan of the fnaf series, but i have seen GROUPS and GROUPS of fnafs.
4: Hate groups. Yes, these are real. They go around looking for things to hate on. (characters, bios, fandoms, etc.) and they (you guessed it!) hate on them. HARD!
5: Sparkledog/neoncat groups. Nothin' but sezuires!