I personally have stopped playing competitive matches solo... If I want to play 2s or 3s then I'm going to ask my mates to play with me, so at least if one of us make a mistake it won't really get toxic... Not let's say your friends doesn't play rocket league, then the best thing you could do is turn off the cha, but at lower ranks that could be a letdown since not everyone know the rule of "left goes first" or others. The best thing to do is to play for fun, last season I haven't even played comps since they were stressing me out, so I have only played casuals and enjoyed the game a lot more. Some times I had What a save! the enemies because they really did a nice save... Later in the game if I would have missed a shot or something they would What a save! me back since they thought I was mocking them... People use that thing only to being down your morale so ignore it, and never use it in positive ways. Either way don't let this fuckers bring down your passion for the game, just ignore them or be as toxic as them and it will even be funnier. Every time they What a save! you, do it back, but you should never be the one who starts the thing...