Yes it is difficult to join a paid forum only on the basis of a screenshot with some topic headers.
It would be better to have some shared statistics on a real account about your EAs or fx systems before paying...
If you consider lesser periods than 6 months (let it be 1 month) you could gain more money from more users, than having a symbolical profit instead.
Besides, why even join paid forum? How can we be sure is it worth?
EDIT: Sorry for digging an old thread
World Wide Invest was established in 2009 with a vision: To provide unmatched online trading solutions to a broad range of traders and investors group around the world.