Friend allow direct messages button

Hi!, i have a good idea for discord, you can make an option that will let you choose to who you want to be protected from (as in allow direct messages). let's say that I made the option that a whole server can't text me, but I want to text specific people who are in the server, so my idea is that when you click at a profile of a user, it will show "Allow direct messages from this member" and you can slide the slider to enable them, hope that my idea will be in discord.