He’s 3500-9000
How good is the questionmaster bot??
My guess is that the bot plays relative to the level of its opponent. Based on the moves they play and not necessarily their chess.com Elo. That’s based on the fact that low elo accounts are beating it, apparently somebody has a game where it played at a 1450 rating, and context like the fact it’s ?? rated instead of a fixed rating
It's not mittens, I think it adapts on who it is playing against or how you play unless it can get a quick checkmate. A while back chess.com leaked mittens and m3gans elo in which I don't believe questionmaster is higher rated 
this is how he lose:"N̶̰̩͍͉͒̀͝O̶͇͉͉͗̂̃̒͌Õ̵̮͑̌̚Ọ̶̥̘̀́͜Ǭ̶̡̛O̴̬͎͙̽͂̈́Ö̷̧̱̥̲͖̌O̸͉̰̣̱͑̏̕O̴̮͚̳͝Ơ̵̧͔̻͓͋̏͛O̸͉̮͛͋̒O̴̢̪̭̥̿̽̄͛̚O̵̺̲̻̍̈́̆Ȯ̴͙̖͍̋͗Ơ̸̰̹̈́̓̚ ̵̧͎̪̘̽̽̚!̴̦͌́ ̴̫͙̍̎H̵̠̻̩̾̀Ȍ̵͙̮̅͗W̴̰̳̆ ̷̬̞̫̞̑̇͛̑͜D̵̳̗̥̝̱̊Î̷̧̯̜͊̓̓͗D̴̼͈̒̔̐ ̶̠̖̊͒͘͘͘ͅY̸̡͔̰̭̊͂̏̇͝O̸̘͉̻͈̗̔͝U̸̩͊ ̸̛̬̽̈̽W̴̹̌̑̂̎Ị̴̖̓̔̄̃̈́Ņ̵̼̝̦͎́̽͐?̸͚̫̠̊̈́͝?̶̥̲̜͍́̓̈́͂̌?̴̻̻͕̬̻̎̎̇͋̚"
Check this game out, Question master is black. (Might be a sign!)
how's that draw?
Because white can't move
white is me and black is questionmaster and to let you guys know i used engine to defeat questionmaster and if you guys want the anlysis here you go:"https://www.chess.com/analysis/library/4NdneasQ5L?tab=analysis"

If a bots rating is at 5- , then it is a mystery. The mystery is the rating.