Somebody did, might have been you. We're getting an incredible amount of dupes lately, appears like not all monkeys read all threads.
Might be you are the only one that likes it all that well. It would be polite of you to save it to your desktop, that way you can see it whenever you want, and we don't have to see it again.
If I see something that I posted pop up again I just hit the like button. Even if it's a picture from a sign that I stopped and took a picture of with my phone. If somebody re-posts it, I like it. Could be because your post count looks like the odometer on a car that's reaching the end of its warranty period, or maybe... just maybe, there are other people who like the same stuff that you do. Cheers!
There's a song around says "that's the way to do it." Beats a lot of reposting the same thing, which might be called spam. @Ganado - So what if it can't be seen as a joke? Anyone who has heard a comic's schtick more than once will realize that funny once is not funny forever.