Hate Rift Challenges
have noticed the Dcing has gotten much worse since the rift challenges started. People have all these challenges that have to be done in a single match.
If something happens that prevents them from completing the single match challenge they're working to complete they just quit and start a new game to try again.
The rift challenges have made playing awful recently. Single match challenges are the single worst idea I've seen implemented into this game in the whole time I've been playing it.
While I know single match challenges weren't designed to encourage DCing they create a huge incentive to do so the moment someone reaches a point in a match where completing their challenge becomes impossible.