Sadly yes, here is the announcement: https://lemmy.autism.place/post/747418

The instance I recreated this community on (sopuli.xyz) has been up for a long time and I believe it will stay since the admin is open, active and has been running the instance for years.

Yeah the comment looked like any other post that account made and as you said, LLM generated crap. Full of mid sentence emojis, hashtags, and structured like a summary.

I was going to let the comment pass thinking its probably from Mastodon or something because of the hashtags and style. But no, the user is from a lemmy instance.