Re: We REALLY Need a Leaver Penalty ASAP...
I don't think Solo-mode caused this, people are. I could play Solo with a solo-mindset but join a "normal" mode later and play as a team... it's not related to the game mode but the personal behaviour/education/brains of the player itself.
Many people think that people over the internet, miles away from them, are just "virtual entities". They don't care about ruining the game experience for them, in a selfish way of thinking.
You can take a look at Twitter and see all those people flaming, insulting... just because they feel "covered" by the net. I think it's a common problem nowadays, and at some point game players are a bit like that ("I just don't care about others").
But don't give up, there's hope... just don't get dragged by that behaviour and stick with other players that do the right thing too. 😉