'Basic' verification means that this account has satisfied the basic automated system requirements that help us recognise 'real' people from spammers, scammers or otherwise fake accounts.
'Address' verification means that we have successfully verified this Pinsider by sending out a verification letter to a mail address they specified. We keep a record of this maila ddress for as long as the account is active.
Please understand that this does not mean this account has been vetted, or that it has any kind of official Pinside approval. Always be careful doing business online and always do your due diligence, especially when payments are involved.