I do it too!!!
My favorites are:
"You have recieved an upvote from @ getfatnowbot courtesy of @ yourself!!
And
"This post did bring a tear to my eye. Can you please share me to be so awesome also. Come and checkout my blog. And you can upvote all my copypasta and cute kitten memes!"
And the one I always get...
"The sarcasm is strong with this one."
X-P