This is a very simple but meaningful request to myself and many of my friends that hasn't seemed to have gotten any attention from the devs yet.
I have a fairly extensive friends list by this point, filled with genuinely wonderful people. However, most of these wonderful people also don't know the meaning of the "busy" icon, nor pay any attention to my "no joins right now" status. They tag along with me practically every time I join and want to monopolize my time online. I don't want to burn bridges by unfriending, but I also get flak from them for supposedly ignoring their invites. The only option I have left is to create an alt account, which I don't want to do due to the trust system being so brutal and unforgiving (still stuck on Known User with 600+ hours and a stellar reputation, but the safety system is a separate gripe).
I'm logging in less and less now or at different times because I'm always anticipating the friendly, caring horde that inevitably descends to politely demand personal, one-on-one attention from me. Sometimes I just want to relax or meet new people.
What I'm asking for is very simple; like every other social platform, heck, even like Steam itself: give us the option to appear offline to other users. This simple feature would be so liberating to those of us with a long friends list. Thank you.