Would you like an in-game parser?

[Oscura]

1.Go to reddit.
2. read one of the many endless complaining posts about how bad players are
3. notice that most of them are about raid level content.
4. there you go.

There is an entire thread with over 1300 pages more or less dedicated to complaining about duty finder/party finder/etc. The grand majority of the posts there are just complaints. It's the same thing.

Edit: My point being that people will complain about anything, even those that don't parse. You don't have to go very far into said thread for people to be constantly complaining and whining about player performance regardless of parsers or DPS numbers. The raiding player base and more specifically pro-parsers aren't any more toxic than the average casual player.