If indeed they're banning accounts for using virtual cards, I see a parallel with the early days of Gmail. You couldn't use a Gmail account to sign up for a lot

If indeed they're banning accounts for using virtual cards, I see a parallel with the early days of Gmail. You couldn't use a Gmail account to sign up for a lot of sites because short-sighted admins categorically prohibited all free webmail accounts. In their minds, the only "real" email addresses were at AOL, Earthlink, employers, universities, etc. Never mind that Gmail was invite-only and probably a much stronger indicator of a legitimate person at the time. The victim grows up to become the bully.