Oh this been talked about so many times , aritsts boycotting and such but then again, we here share our artwork with old and new friends , discover new artists  and this should ve been the main reason why we here.
I didn't even know that charts existed..untill i read one of complaints about "comenting machines" Not that I care much either.
The funny thing is , when you start being honest and leave comments on art that you really want to say somthing about , and/or not return comment(as just a thank you) to copy&paste person , they will eventually stop showing up at your page.
I don't think this can be solved somehow...the only fix is to cancel existing charts  :)  all I do is try look a lot at new galleries, and also seen people link to new talanted aritsts from their own images posts .