This is only my personal opinion so dont get me wrong. Why not to stick to JustFun's index? Even if you post games already on the index there is no problem, some games are posted multiple of times with different methods or game versions. I think keeping all games in 1 unique index is better and JustFun is keeping it updated daily. I dont think there is a problem to duplicate games, any different method is welcome.
As said, only my opinion
