I don't think that's a particularly good idea.
Who decides what's beginner, intermediate or advanced?
Why foster a forum culture where games are divided by technical skills rather than artistic expression?
Where is this avalanche of games and software being posted on the forums that you have to categorize them?
And lastly -- It makes it harder, not easier.
I see what you mean.But it would make it easier though.And it's very easy to spot advanced games,gfx and gameplay.Adv games are just more complex,gfx wise and gameplay wise.Anyway it was just a thought.