I'd also add an additional point. If you have a positive trading experience, leave trader feedback. If you have a negative experience, leave trader feedback. If you get cigars from a PIF or a MAW thread, leave trader feedback. If you buy or sell cigars in the WTB, WTS forums, leave trader feedback.
Seeing a trend here?
Let everyone else on the forum know that things went well. If they didn't send a PM and, if there is no response, then leave feedback, negative or neutral.