I believe I just deleted the first secretly ChatGPT-generated comment on the forum for an OSS project I maintain. It was shaped like an answer, but didn't actually answer the question. Great grammar, sounded authoritative. But, wrong. The internet is absolutely going to become gray goo, and it's going to happen so fast.
@swelljoe we've been getting some of these on the @wesnoth forums

@egallager @wesnoth I don't know why I was so surprised by it. It was inevitable. We've had existing users post ChatGPT answers, labeled as such. And, I asked them to stop doing that and they did. But, these are new users and it seems to be a business model of some sort.

Yet another thing to waste my time each day, making being involved in anything at all on the open internet a constant source of misery. I already gave up on wikis and mailing lists years ago.