I believe they were referring to the fact that the bad keygen software used has resulted in BTC from other, non-collectibles wallets potentially held by normal, regular users who have nothing to do with this forum, being moved and stolen.

I'm baffled as to why they don't share the software at this stage, given that it could save other folks.

Many people who tried using a vanity gen software have been compromised. You should have stuck with your original software that worked on your first coins.

   I know you didn't end up using the vangen part but you still used their software. Did the swept funds go to any exchange? Perhaps you can reach out to them to freeze the funds. Always stick with what works. And in your case the first key generation code looks like it was solid.

   Also please post where you got that software so others do not fall in the same trap. And perhaps take legal action as well