If you do a little research you will find numerous forums that discuss the issue of virus infections occurring at deviantart. Even their own forums have quite a few posts on the subject. You don't have to actually click anything or "be stupid" to get an infection (although there are the typical click the link style infections on deviantart, but those are to be expected at most social networking type sites) and it seems to be popular belief the problem lies in the advertising containing malicious codes/spyware.
No, defiantly not! But, people can visit your profile and hack your account. And ads could also give you viruses, but just be careful and you won't get a virus. Trust me.
You can't delete your deviantART page.
The DeviantArt Mascot Contest was in 2001
people who viewed your deviantArt page.
DeviantART glitch updates can be found in their Status Forum.
You can't use badges on DeviantART.
No, you do not. It is not required to post artwork to have a deviantart account.
Price wise (currency), it is free. The whole website is free, unless you purchase a subscription, which is optional. Free as in viruses wise, most are, yes. There has not been a reported one to knowledge of one containing a virus. Most browsers when downloading something from online have an automatic scanner which looks for viruses before download. If you are unsure about downloading such things from deviantART, be sure to have a virus checker in your downloader. A free one is built in if you use a Firefox broswer.
DeviantART was founded August 7th, 2000 by three people; Angelo Sotira, Scott Jarkoff, and Matthew Stephens. Angelo Sotira can be found on deviantart by the username of $spyed. Scott Jarkoff can be found on deviantart by the username of °jark. Matthew Stephens can be found on deviantart by the username of °matteo.
Unfortunately, DA is a popular place for viruses to go around. Most popular sites are.
Coppa compliance for websites means you must be 13 or older. So yes, you can be 13 and a deviantART member as deviantART is coppa compliant. You cannot be 12. :)
Assuming one is looking for information about cartoons on deviantArt, the best place to look is deviantArt itself. Wikipedia also has an article about deviantArt.