[tryp4vps]

....... The money that the website owner get also isnt more than just placing a google ads

I think it shall depend on the traffic sources of the forum.

If most of traffic sources come from developed countries like the U.S., Google AdSense is surely the better choice for monetizing the forum traffic.

But if most of traffic sources come from "poor" countries lacking of good advertisers, it is possible that web mining may achieve better results than Google AdSense.