Is there a way to report players?

[poipoi]

I was playing commander against two guys, one of which didn't like my deck, so he decided to wait 4 minutes between every click to make me concede. The other guy obviously left the game. Is there a way to report this player? Are measures planned against this type of player?
If you want I can provide his nickname and screenshots of the chat where he says that he's gonna make me wait.
Thank you in advance for your help

[illuknisaa]

Let me guess you were the Yisan player?

If you don't wanna play with some people you type in the "tables" chat "\ignore [username]" eg. "\ignore poipoi" and then you an no longer join games where they are and they can't join your games

[poipoi]

I weren't the Yisan player, and I haven't played with you yet. Thank you for the tip, very helpful!