You can express a desire for people to treat each other with respect while simultaneously recognizing that a particular individual generally does not do that.
On a related note, and to answer the main question: general abrasiveness in the community, see here for a concentrated example among many.
I'm not a hugely competitive player so balance tends to be abstract for me. Haven't had a big problem with connectivity. Even ingame shittalking comes with the territory--people getting pissed when they lose and blaming their teammates is pretty universal.
But in a niche community, seeing people get trashed as a matter of course makes me question who I'm associating with. It also has the knock-on effect of making generally reasonable people testy in response.