It is a brilliant feature that was needed for a long time.
Where can you set this? I could not find it even on clubs where I am super admin. Is this a beta feature?
Blocked Clubs List
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Nov 28, 2020
0
#4
Found it, thanks!
From top of my head I have only this one:
Chess School https://www.chess.com/club/chess-school-5
Other that that every team that has Harry Potter in their name. I played against 3-4 and all were terrible. 
Nov 28, 2020
0
#5
To block a club you type in the name. Trouble is there are 7 clubs named "Chess School" and at least one of them is a good opponent. I am not able to tell which of them you are referring to by the spelling. I don't want to block good clubs.
I will bring this up in Beta.
Nov 28, 2020
0
#6
a) I mentioned this to Beta and they are working on it.
b) There are more than 50 clubs with Harry Potter in their name. That will take a while. 
Nov 28, 2020
0
#7
I blacklisted them in another club by checking the upper case lover case. That seems to be different for every club.
We now have a feature which allows us to block certain clubs from accepting our open seeks and also from challenging us.
The cliubs which have already been blocked are listed below.
If you think a club belongs on this list then please submit a comment with the name of the club and I will add it to this list.
Harry potter legendary club
DORU-66 AND HIS BEST FRIENDS
BLACK KNIGHT CHESS
PHILIPPINES' FINEST Chess Club