I asked chatGPT about those stores and he said its not safe shops. I use only pluginboutique.com not similar name of it because I don't trust to illegal software. The same you can buy licenses from eBay and you find only cracked versions with viruses.
In my opinion they try to sell cracked and pirate versions.
On Facebook they try to send me super offer for omnisphere but when I asked them about legal they didnt send me answers.
Ok, I don't use illegal softwares but if someone did emulator I only want to know how to use it but If ROM from Virus TI could have only user who bought hardware , I understand it ? and don't want to find a way to use it .