That Discord thing admittedly got me up in arms for a couple of minutes too but it turned out to be a false alarm, those AI bots only exist for anyone using the AI editing features (you know, those 4 symbols that appear when you hover over an image). The original information that was being spread around was that 4 invisible bots were auto-scraping everything that was being posted without the user's knowledge, but that didn't actually seem to be the case.
As far as I know, the only time someone's uploaded image will go into one of these AI bots is if someone willingly uses those features, which has a low chance of happening in most artist communities and I'd say about 0% chance of happening in your commission clients' DMs.
Secondly, AI will only "replace" you if you stop creating, and not a second earlier.
FalenDemo5
Honestly, the fact that receptions of AI Images (I refuse to call it art now) went from "hahaha look at this shitty image that AI made, it will NEVER replace the artists with shit like that" to "Holy SHIT, it might actually replace us!" is horrifying.