I can understand skepticism as well and no one has ever given me a vintage Merckx either but let's be careful about unsaid implications here. While anything is possible coming to a large nationwide (world wide really) website to brag about a stolen bike isn't very logical.

Over 30 years bikes get handed to other family members who don't know what they are or heard them described as "obsolete" by an owner who wants carbon fiber or similar and then they end up as "junk."

It happens.