If someone is My Poupette Reccomended Seller it means that they have applied to Mypoupette to become an "MPRS"
They have to apply, MP looks at their ebay history and then they have to pay MP like $45 a year, they have to sign some contracts, get a book on authentic LV and a bunch of stuff like that.
Then they can use the MPRS logo on their Ebay auctions.
I don't think MP actually checks up on these sellers because they have been caught selling fakes by our members here who then have reported it to MP (so if they were checking up on them they would have caught it).
So - it means that they are probably reliable buit always come here for double checking !