deviantART is a lovely site, one of the best I've come across. However, like all good things, it has it's bad side. This guide teaches you how to deal with those really bad things, art thieves, trolls and scammers.
These people can be really distressing for an artist. They can find themselves in a situation which they don't know how to handle. Hopefully, this first part should guide you on how to deal with them.
~If someone steals your art
If you are informed or find out yourself that your artwork was stolen, go straight to the deviation and proceed with these three steps:
Step 1: Say something like 'This art is stolen, please delete it.' If, within a week, the art is gone, forget about it. If not, carry on to step two.
Step 2: Return to the deviation and tell them again 'This art has been stolen from me, delete it.'. Again, if the art is gone within a week, forget about it.