the problem is, when playing “with” random people, one isn’t looking for “positive” but effective behavior.
outside a match or what they bring to the team to reach the common goal, you don’t know em from atom nor do you owe em anything other than giving your best for a win.
being “nice” is with people you know and like, random folk you meet for a match neither got face nor name, so “nice” isnt earned yet when starting at “neutral”
cause it aint efficient and sometimes even detrimental to the games goals.
not carrying every casual through the match for example isn’t “nice” but cutting your losses and not investing into dead weight might be the right call to make it to the end.
again, random folk you pair with for 30 minutes and never bother with again most times.
sure, don’t be an ass shouldnt be have to explained but other than that everyone’s out for himself on the pursuit of his goals.
that’s what everyone agreed to upon entering the playground.
nothing more and nothing less.
one can bond over the experience if a team clicks in an exceptional way, but lets be honest, if a dude was dogwater ingame you’d rather not play with him a second time so “niceness” is earned through performance when getting to know each other.
then there’s pvp games and funny enough all them tough guys in beat em ups that youtube had in my algorithm lately.
wild to me people even play this with voice on, cause there’s only slurs, insults and death threats anyways 
and yet, people love the competition/ladder/and mouthing off…