As soon as I learned that Raider.io now allows setting profiles to private, I did that immediately. I also did the same for Warcraftlogs.
The strange thing is: I really don't do Mythic+s. I do, however M0, for fun. I decided to block Raider.io and Warcraftlogs mainly because I don't feel comfortable that it's a norm for people to inspect my performance via 3-rd party addons. I prefer to keep that data to myself.
Who else is in that club? Do you use Raider.io? Did you block it as well?