My only issue here is the 100%. Who is going be spending the time making sure within reason the ads being delivered will both be safe and legit. If they are filled with a bunch of scammers trying get peoples private keys, other information, or infected with malware does not sound like a cheap thing to deal with.
Otherwise while the big “mainstream” stuff turns it back on the cryptocurrency world and there advertisement funds I say why not embrace it.
With people having the option to turn off running ads on their own page. Not to mention all other stuff going on in this site might as well at this point have thing going as well.
It would be nice to one day have googles style metrics on our blogs. I think that is the big thing missing here in bringing in advertisement dollars.
I personally hope one day to get some review gaming codes for a community I’m very active by reaching out to companies and information them we have a large amount of game reviews who would be willing to review the game at the cost of only a free key and being able to say what they want about the game. Hard to do so one day when there are no numbers of influence or other metrics to give out.
The short answer is the protocol itself would address it. There are a few ideas in the post (blacklists, and thresholds) that could be used. The time spent would primarily be everyone in the community agreeing on the protocol, and then the individual websites integrating it to show the ads if they decide to use it.
The real challenge is tracking the interaction across all the different Steem interfaces.