I'm right with you, Tony on the reasoning, here.  The Art Charts seem to always have the same people at the top 10, week after week.  It's a 'clique' and club around here.  There are some fine artists around here, and more than just Poser users, yet nakedness seems to be the selling point. 

As far as the C&P commenting....most of it comes from the one's looking to get in the Charts....see how many renders they can comment upon and favorite to get the same in return.  

My idea for the Art Charts:  once you make it in the listing, you're off until the following month.  That way, more people would get the chance to see their work appreciated.
I've turned off ratings long ago, so I'm not concerned about getting into the Art Charts.....been there once and that's enough for me.