The problem is guessing and the discussion about it. A netflix or hulu acc for 3$ cant be legit. Please proof me wrong.
No its not, I mediated a scam accusation a while back and the password for the account in question was also a password commonly found (as in several times) in e.g. the web000 database dump. They are either obtained via phishing or because of weak password. Most of the sellers even advise you not to change the password, which should make you cancel the deal immediately. People are greedy though and in their eyes they only steal from the big companies so there is no harm done. This is nothing new, the only new part is that these keys/passwords are now resold for bitcoin. The question is whether or not theymos wants something to be done about it. IMHO it easily falls under the "illegal goods" rule same as fake IDs or funny money.
Its too specific about invites to be applied here.