Where do i start? The owner of the site uses stolen artwork taken and uncredited from other sites, and even your own, to promote it. Not cool, dude, considering your intended userbase is artists.
In general, this site is $#*!ing mediocre, everything about it feels cheap.
There is no proper policies for copyright or anything, and the report system is $#*!ing awful.
That isn't even the worst point! It's a scam that steals your artwork to make profit off your hard work, i honestly have nothing to say. Seriously, stay away if you're a artist.