Can we please get an option like this?

We need an option against these persistent gil selling bots that we can turn on or off in the UI.
I didn't see a good place to post the recommendation, so I'm just posting it here. I want the ability to not receive tells or invites/requests from anyone who does not have a level 50 character OR people who are not on my friends list/FC list/Linkshells list

The RMT is crazy these days and it's really annoying me lately because every other minute when I'm not on "busy" status, I get a friend request and tell. Reporting takes long enough for the next one to show up at this point. I received 3 /tells and 2 friend requests from obvious RMT advertisers within the time it took me to navigate to and create this thread.

I think either a block option in the friend request tab to immediately block them or to turn off friend requests all together.