Interesting tidbit. The way I see it, adblock accounts for a tiny fraction of worldwide use. Hell, look at the users that actually have adblock installed... Most are Linux users. That should imply a lot.
Paid mods could be good. Even if they're not supported in future updates. Sure some people do things for free but that's not always the case. Although that's pretty much what's been keeping pc gaming afloat all these years.