Typically when an artist advertises that they are taking commissions, they will also provide prospective buyers with their PayPal address. Payment is almost always done through paypal, but some artists do take checks or concealed money through snailmail. You do not actually pay through the deviantart website, it is just a site artists utilize for advertising and display of their artwork.
you dont have to pay to be a member but you do if you want a subscription to the site. You get a bunch of extra options if you pay.
After you pay comissions and shipping charges it seems to come out to around $84 a gram lately.
They do not get comissions. They work on salary only.
people who viewed your deviantArt page.
You can't delete your deviantART page.
The DeviantArt Mascot Contest was in 2001
No, you do not. It is not required to post artwork to have a deviantart account.
You can't use badges on DeviantART.
DeviantART glitch updates can be found in their Status Forum.
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.
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.