First of all, if this is just a great promotion and everything is above board I apologize to the vendor for calling this into doubt, especially since his product, shipping, and stealth have always been A+++ every time I've ordered.
However, this time I received a slip of paper with a promotion for future buys included in the package that sounds way too good to be true. Is it possibly a setup for an exit scam or worse, he is compromised by LE and they are trying to build evidence and have people order in bigger quantities to make a stronger case with higher penalties?
Again, I may just be paranoid, and if so, call me out on it...but I'm just wondering. Should I clean house and consider my address burned?
What does the note say? Vendors should never leave any info like this in any of their packages, this is really unprofessional for a start and you have a lot less plausible deniability if this was found.