As stated above a money order, certified check or cashers check mean nothing
they can all have a stop payment place on them or shut down the account.

I went to wire transfers or US post office checks that can't have a stop payment placed....
The wire transfers can cost the buyer a good amount but at least I don't get bit... I walk out with cash in hand and go ship the item

I hate scammers.... they should have to meet up with some guys in the dark with bats...
couple lumps on the head might do them some good