I know some people here who are also victims of online harassment or some form of abuse would enjoy the idea of being able to 100% remove the option of having incoming friend request’s, some people will make new account’s and try to add you just to get in contact with you even if you’ve blocked them on other accounts.
Lot’s of other launchers for other game companies have this option, I hope blizzard can have this as an option has well cause I’d say 90% of the games I play now a day are mostly just WoW, WoW and WoW.