Personally it is an anxiety issue. I has ASD (Autism Spectrum Disorder) and does affect with how I feel when playing with others thou these days I do shut down on those who post EZ or diffs and just express there's no such thing, just a good game between players and figure out what difference I would do to make a change.
The major problem I see is the potential the toxicity that occurs while voice chatting, steaming from blaming for one's performance, belittling someone else, unable to take criticism, or taking abusive talk that does include racial, sexual, and homophobic slurs. I don't blame esports because these kind of stuff has happened for a long time, even I admit I have been toxic on voice chat during the Xbox 360 days with no knowledge or care about enjoying a game with others. But with understanding that gaming is really for everyone, I just rather improve and enjoy the game than just win like 5 or 10 in the row and have a big head of how good I am instead of knowing how important it was to work as a team or have better positioning. It is true that several games do have systems to report toxic players but when you include the likes of social media, and even players who would use cheat programs to get a one up and use vocal intimidation to keep others silent, it still raises an issue about it.