you can filter rating (by custom challenge) but why avatar filter ??
Filtering opponents
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I don't trust the 'Grey Prawns' regiment. They tend to abandon their games after only a few moves and not one of them has even said "Hi".
Hi
I don’t abandon games
Why not get a picture you Muppet Lord?
Idk how, tbh
There
hi
i don't abandon games either
Sup
I’ve gone over to the dark side and gotten a profile picture
LOL
Nice chameleon... 
Apologies for calling you a Muppet Lord.
The chameleon is my pet, and i didn’t take offense, i like the Muppets 😁
Is everyone on this site a total loser? Answer the OPs question!!
https://support.chess.com/article/2004-live-chess-settings
There are settings you can allow with ratings but not avatar 😁
I've heard from some posts that you can filter your opponents, presumably by rating, country or whatever. I would like to only be paired up with opponents who have an avatar - is this possible?