100% certainty. the data gleemed from the content produced by a lively community is valuable to data mining and marketing. once an instance makes their radar, they will want a pipe into it. whether they pay the instance owner, the ISP/cloud it sits on, or just copy the data maliciously, they’ll get it and sell it. and then have a plan to manipulate it / sell to that user pool as well.
it’s “natural” (for assholes) to do this. seems to happen everywhere, but lemmy and fediverse are prone to it for now.