Well, that's ideas #2 and #3 shot down, lol.Coinbase can do anything they like, including just shutting down your account the instant they think anything whatsoever you did is fishy in even the tiniest way.
And in case I haven't made my opinion clear:
IGNORE THIS GUY. DO NOT USE EXCHANGES FOR ANYTHING EVEN REMOTELY RELATED TO KF.
(Except for the part about never reusing addresses, that part is totally right.)
#1: nobody will want to advertise anything here unless it's either malware or an outright scam that's blacklisted everywhere else, leaving this as the only place they can buy adspace. Absolutely no legit companies would even come close to this place because of the potential backlash.run ads on a peer-to-peer basis? Each week, auction off four slots in the rotation. Ads run for a month. Highest bidder gets them.