Resolved: Heads up: Don't try using the trainer right now. (UTC 17:20, May 16th)

Normally during past site instability the trainer has just, at worst, merely failed and refunded so it was safe to use. Not now! I got double charged AND the training request was "denied" because "We have found an issue with the training dataset that may violate the TOS." (it was all PG images of a cartoon character, so I don't know why it would). Support is going to take a while to clear the ticket at current rates, so don't make my mistake!

Doesn't appear to be isolated since I can't publish another LoRA I already have trained.

Edit: Per updates tab, the trainer is now offline. Except that doesn't appear to actually be the case: I can still do everything and get to the final screen (I'm not going to try submitting).

Edit: Ticket response was surprisingly fast (for comparison, in the past I've waited 8 days for a response on a potential injection vulnerability!). I've gotten a refund and the training is apparently processing in the background despite what it say. In true Civitai fashion, the very specific error message seems to have been reused for multiple things it shouldn't be used for rather than an actual ToS violation. Still, I can't recommend using the trainer right now, since I'll need to be sent the links to the finished epoches/pics manually according to the ticket response.

Edit: Got the links for finished training. Will have to upload manually though. Might be stable now.

Edit: Seems stable now.