The way other religions were talked about, how the people who weren't JW's were scorned, just as those who were not in the "IN" crowd at the KH were.
The very noticeable lack of genuine love and concern for the fellow witnesses.
The holier-than-thou attitude of the elders and their wives (some, not all)
The way the r&f children were chased after and monitored, and reproved,or DF'd, while the elders kids got away with everything. (In my congregation anyways)
I could list a few more things that irritated the hell out of me, but this'll do .