I've actually wondered myself from time to time... Maybe Bitmover is right, but i always wondered why other company's that accept bitcoin as a payment don't jump on the potential traffic from the biggest bitcoin community...

I mean, as long as you sell a product that's more or less mainstream and most (tech savvy) people will buy from time to time, i just feel it would make sense to promote on bitcointalk.
I have also read from certain mixer-owners that the traffic they got from bitcointalk was much better quality wise than the traffic they got elsewhere....

I could understand if shops accepting bitcoin would do a trial for a couple of months, and in the end conclude that traffic from google ads is better and stop using signature campaigns, but you simply don't even see any trials.

It makes me wonder if it's a legal issue??? Most of us are pseudo-anonymous, and usually bigger company affiliates have to pass trough KYC so they can get harassed by their country's tax authority afterwards... I guess it would be harder to implement a KYC centered affiliate program on bitcointalk.