Being an almost 2 year user to this site, I have experienced good as well as bad things. If you are an artist looking for someone to crtigue your work, that parhaps you would enjoy this site.
However, if you intend on drawing fanart mostly (like I do) be careful. People are VERY opinionated on this site. There are people on this site called "trolls". They seem to have nothing better to do that make fun of fanartists who develop fancharaters. They love it apparently and can be very hurtful.
Secondly, if you want to report anything, anything at all...dont bother. The DeviantArt staff will just ignore you. I read a story that a user saw someone post un-cencored pictures of a girl's...you-know-what...and the user tried to report this. Nothing happened. The staff basically it wasn't a violation of their rules.
Aside from that, deviantart is just as full of kind folk. My advice is to think before you post and keep your head about you.
If you'd like to see my profile, google: flourislioness