TGF is a community that focuses more on the commercial aspect. It makes money for the administration team and the members through contests, discounts, etc.
The point is not to transform II into TGF but to create a better community with a commercial side that ALSO offers more than enough information for newbies and traders for free.
Ultimately, it is difficult for a community to thrive if it remains 100% non-commercial, as u suggest. TGF will not ask for money from members but will make money from ads and sponsorships.