It wasn't one of the highest paying ones, but it was one of the longest running ones. Duelbits also recently downsized, and the fact that they mention other marketing strategies reminds me of what Best Change said back in the day. Forums may be going out of fashion for advertisers. Let's hope not, and the fact that new campaigns are coming out seems to indicate that this is not the case. But many don't last more than a few months. Who knows what the future holds in this regard.
According to ads stats, it's increasing especially people who logged in, so far so good actually
https://bitcointalk.org/adrotate.php?adstatsI think the forum need to show their
appearanceexistence on other social medias/forums to attract new people. Whether they run other social medias by themselves or working together with other projects like cointelegraph, coinmarketcap etc which Average Joe's read.