After several years, I'm finally done. I have decided to quit...
...the Boards. Seeing at least 10 Dynamic Queue circlejerk rants on the front page every day, without any kind of nuance or two-sided discussions and a huge overload of unreasonable conclusions and generalization, has brought the Boards down to the point where even Reddit is a better place for open-minded discussion. If you are really that whiny about every single change and decision by Riot, then just leave (without making an overly dramatic "I played for X years but Riot/Dynamic Queue ruined it for me" post) and allow people who do just enjoy the game to actually discuss things.
Might come back in a month to see whether I can finally post something like this without getting downvotes and the usual "You only don't complain because you like being boosted" (despite being a solo player) reactions and some circlejerking about ranked losing it's meaning (aka "I'm low ELO but I don't want to accept I'm not good enough so I blame it on DQ instead of elo hell.")
Post done. Time to play some games: since I'm not very high ELO, I couldn't give less fucks about the 0.1% chance I get matched against a 5-man, and this season I have encountered exactly 0 boosted players and 1 toxic 4-man premade. Complain all you want, but I have to see it to believe it.