1) The matchmaker screws up and I end up on a team of total newbies (as in this is their first or second match ever) against either a premade or a team of solo players who all have “Champion [class]” or “Legendary Champion” titles. It was kind of funny the first time, less so the fifth in a row.
2) I end up on a team of people who are completely unable to have fun on a map and they spend the entire time screaming bloody murder at anyone who wants to do something other than rush mid and die repeatedly.
Since I pretty much only play unranked, the second one baffles me. If you want to be super serious about your spvp, why not play ranked? Why get angry enough to bust an artery at people who just want to have fun? I don’t like losing either, but I’m fine with it if it was a good match. There’s nothing wrong with wanting to have fun in a video game.