Saw this when going to train a LoRA. I didn't see any official announcement for this, so I figured I'd let people know.
As for me: I won't be retraining my Pony stuff till I hit a lull in stuff I want to do (and thus aren't spending blue buzz as soon as I hit 500), but I have retained my tagged training data for everything and will be able to do it when I do have the buzz and nothing better to do with it (when I get to that stage, which likely won't be till mid-January at least, I'll hold a vote on what to port first). If anyone really wants one of my LoRAs in Illustrious and can spare the 500 buzz, sent me a message.
(What is the abbreviation for Illustrious anyways? ILXL? IlXL? IXL? The others are "1.5", "SDXL", and "PDXL",)