deviantUNANNOY removes the sponsors block for non-subscribers.
Requires: DOM Level 1 Support.
Tested with: Mozilla Firefox.
If you like this script, please consider donating using the PayPal link above.
Alternatively, you could buy a print of mine.
To use it, drag the following link to your bookmarks (the Bookmarks Toolbar is a good place):
Then go to the target page and click the bookmark you created.
You can use the Greasemonkey extension to automatically run the script on your deviantWATCH. After installing the extension (and restarting the browser), right-click this link and choose "Install User Script...":
Run the script. Greasemonkey recommended.