I see this comment alot, WoW's community isn't has bad as people here make it out to be. People there just want you to not be brain dead and that's it. I played WoW during MoP never touched it prior, had absolutely zero clue what was going on and no one flamed me, harassed me, nor kicked me from a dungeon.
Also if you want you to mention toxic communities, Archeage, BnS, Aion, and BDO and only one of those people actually parse in and people aren't toxic there because of it. Why is this community so scared of stuff? If someone is being a jerk just report them you can't punish everyone for a small few. People are going to be jerks regardless of having a parser or not.