i also support!
for example, i used to play a game called bittybay and there were commands you could use to put a little green button on your avatar that said 'afk' (/afk), or a little blue one that said 'brb' (/brb). they would vanish if you either used the command again, or moved onto a different spot. additionally, the green 'afk' would also appear on its own if you were inactive (as in, unmoving) for a specific amount of time, e.g. 5, 10 minutes.
i do think it would be possible, however like all other ideas, we must wait for our dearest creator to return to us. u w u