Solo Surfing the Dynamic Rift
I'd like to start with the caveat that I love DQ.
I think it's great, and it's one of the best things that has happened to this team game.
However, I also think it has weaknesses that need addressing (decayed lp gains by performance to reduce boosting, for example). And, in my own myopic circle, I've found one that's particularly troubling.
Again, this is only my own experience, however, I've noticed that whenever I play in a premade, I tend to have relatively high-stress and high-reward games. The matches tend to be closer, and the general personalities much more positive.
On the flipside, when I queue as a solo, and especially if I end up in a group of 5 solos, I've found that the toxicity and trolling are reaching new heights. It's almost as if the types of people who are unable to collect friends to surf the rift together are more likely to be griefers. Now, it may just come down to probability (4 unknowns versus less when I've got friends with me), but it does seem to be inordinately high of late.
Of the last ~20 games I've played solo, a good 10 of them were filled with straight up trolling. 0-12-2 yasuos who run down mid repeatedly, and the like.
I'm not sure, precisely, how Riot can look to address this issue. But it is a concern I've found, and something worth noting in the annals of things to improve with DQ.