Content creator LenaGol0vach stated on his personal Telegram channel that he is struggling to climb above 5,000 MMR in Dota 2 due to ruiners.
He mentioned that despite his efforts, including receiving help from a friend to boost his rating, he is stuck at 5,000 MMR because of disruptive players and snipers. He believes his skill level is comparable to 8,000-10,000 MMR.
Previously, LenaGol0vach also suggested on his Twitch stream that regular "cleanses" of disruptive players could improve the game experience in Dota 2.