CA teamwork on Cbid!

It isn't the note that is the problem - it is the agreement not to bid against each other. It certainly is collusion. If it meets the legal definition of the state (maybe PA), if they can prove it or prosecute is another question. More likely they would just ban you.

Cbids policy - admittedly very open ended.

Users attempting to "cheat" the bidding system by altering or tampering with the course of normal bidding, or by editing bids for the purpose of altering bids or prices in a manner in which it was not intended, may have their bids canceled and their account immediately suspended at the sole discretion of CigarBid.