In one of my Dota games, the entire team was threatening to report a player who was intentionally feeding courier and killing himself.
That player was claiming since he has lots of commendations, they offset reports.
Is that true?
No, that is not true. Reports work the same way no matter the amount of commendations a player may have.
dota_game_account_client_debug
command, mine went up by a small amount when I got commended, and down by a large amount when I had to abandon. Given that the behaviour score is in some way used for matchmaking, the claim that "commendations offset reports" sounds possibly true at least to some small degree.
Also, independent of the amount of reports, if they investigate the chat logs, just he saying that about the commendations and admitting hes griefing, will get him properly punished