I've used advertising for many years, and am familiar with some basic logic. Put it this way, would you rather advertise your house to a home owning forum, or a video game forum. Targeted advertising is already used everywhere, and Facebook has the most intricate and precise method used today.
But I don't think 'targeted' advertising will work very well here. We're all bitcoin fans and interested in making more coins so people could click on a signature from a post in any subforum so I don't think they'll be much of a difference between hits in say Bitcoin Discussion than Technical or even Off-topic. I don't even think posting in the Gambling sub would work as you imagine as people who are there are already likely to know about PD, so it'll be interesting to see what subs Stunna considers more attractive. I think the benefit was just having the forum previously blanketed with ads in every section. You could still not pay or pay little for off-topic and people would still make posts there just not as many or just spam rubbish. I still think keeping an eye on people will just be the best solution to fighting spam.
It will be pay per post, but looking like posting in some sub forums will pay higher than others and vice versa.
Wont everyone just post in the places where the most money is? i guess it depends on price gap. Fine with me though i usually post in most of the forums signature campaigns like i think.
Some sections are "harder" to post in successfully than other. That iis, obviously anyone can post practially anything in off-topic. Consider, though, that in order to post in the technical support section, you'll actually have to know something about the technical matter being discussed. If people are discussing a change to the bitcoin protocol you'll need to know something about the protocol in order to successfully add to the conversation.
Yes, but that's where the potential problem is. If that sub is a 'premium' one you'll probably get people not knowing what they're talking about giving bad advice on stuff they know little to nothing about.