For the first time in his ten-year pro run, offlaner Virtus.pro Jonas "SabeRLight-" Volek landed in low priority. He says it came after a single bad game and a pile of complaints — "I fed," he admitted, but added that the team was basically doomed (two carries on the same side, match lost almost immediately).
Volek suggested the match reports might have been processed through the "Patrol" system. He even joked that he's now recruiting people for Single Draft — the mode you usually get stuck in while serving a low-prio stint.
A quick refresher: low priority in Dota 2 kicks in when a player gathers lots of complaints or abandons matches. The penalty forces a set number of games in Single Draft before normal matchmaking resumes. Pros aren't immune; causes range from technical crashes to intentional reports from other players (e.g., griefing).
This has happened to familiar names. Roman Kushnarev has mentioned on streams that emotional matches and the resulting reports put him into low priority more than once. Amer Al-Barkawi was sent there after a run of disconnects. Danil Ishutin also saw spells in Single Draft after waves of complaints. Usually these spells are temporary and, more often than not, don't wreck a pro's career.
The thread around SabeRLight- got noisy. Some folks said the report system can be overzealous — one horrid game plus a rash of reports and you're stuck. Others pushed back, insisting the penalties at least nudge matchmaking toward fewer trolls and leavers. Which side seems right depends on how you weigh one bad match vs. the matchmaking experience as a whole.