Someone can make an FLP that leads to a fake store where it lists a user's items.
They click the 1g item, think they'll buy it, get logged out. Basically it's a 3 page process.

Page 1 - User's store
Page 2 - Fake MP listing
Page 3- logged out or fake "too late" page.

They won't suspect it's an FMP unless they re-click the link again, they'll just think they missed it and weren't fast enough.

It'd be an easy strategy for anyone, just post in CB, TVG, etc that you are going to be dumping your mule's items and link to the store.