Certainly.
Back when he was just doing conversions and flogging them on Ebay he happily admitted to illegally press moulding GW terminator captain heads for his minis because he couldn't sculpt faces (or much else at the time).
Then when too many people started pointing out that it was illegal his next round of conversions claimed he'd sculpted the head from scratch - even though it was the 'exact' same head.
He has since gone back and wiped his own comments from all his old CMON pieces but there are screen grabs and plenty of old forum threads which quote it and him.
He also press moulded Hornet figures and claimed he'd sculpted them himself when he attempted to release some polish soldier figures.
If you look at his actual miniature line and check the heads on his early figures, a dwarf, two servitors, the guy on the back of the big boar rider and others, they all have the same head and it bears an absolutely uncanny resemblance to the same terminator head he'd previously admitted to pirating.
Ashis sculpting shows serious weak points across the line but oddly sharp details elsewhere then I simply no longer trust 'anything' he puts out.
As far as I'm concerned there is more than enough evidence to come to the conclusion that he's a thief and a pirate. As such I will never do business with him and as someone who makes his living from the business I won't just sit idly by while somebody does it as the next time it could be any other company who sees something remarkably similar to one of their own parts show up in a Scibor mini.