Step 1: Click on the tiny dA logo under the deviantART header, click edit profile, set your signature to

Step 2: Pick your desired target (ie: user you wish to spam)
Step 3: in the comments box write
(you can write something also if you wish)Step 4: Click the mood button, navigate to Joy-->More : Humor--> More : llama , click the llama emote.
Step 5: Click Send.
There you have it, This should leave a pretty annoying comment with 3 huge llamas filling up half the users page, AND its Legit (ie: dA can't kick your ass for spamming, since you technicaly didn't spam, you just used the tools you're entitled to use)
Enjoy













Hehe...had to see if it worked.
Very funny