a button to disable showing the opponent's rating..


This affects me enormously. I find it very irritating! Against stronger players I regularly don't punish obviously bad moves because I figure that if I can see that it's bad and how to refute it then they can too. Therefore there must be something else at work here that I've missed. It's a constant problem for me.
I don't know of a way of doing what you ask. I'm not sure if I would do it or not even if it were possible. Personally I'd rather overcome my problem another way.




It's one of those things that would be convenient but probably not overall best for one's chess. This is a psychological thing which has to be dealt with eventually. It's unlikely every opponent you play in tournament will be roughly the same rating as you.
No, but maybe that's because I always look at the rating.
But I have noticed when playing unrated in the past, that in general lower rated players seem to play better when they don't know my rating.