Yes he could have advertised them as his own but had he got found out... and believe me we get loads of reports of users selling on behalf of non members, then he could have faced a ban for that.
We also rely alot on trust that the items our members are selling are their own and in the main they are... theres always going to be some who slip under the radar though!!
no we're not going to start asking for proof of ownership.
Im going to lock this thread now and Admin will unlock it and respond when they get a chance.