You guys are observant
It changed a few months back when we went to IceTrade. And yes, it was announced in several places (website feedback, as well as the email that is sent out to all members).
The old rule was outdated and it was time to go. We simply encourage normal 2nd-hand buying behaviour over the internet (eg ebay) - as Dave said, buyer beware. Do your research.
It's always a good idea to read the
TOS, but I'll always announce when it has changed.