Ok, listen people. I enjoy a good joke as much as the next person. I do. And in point of fact, I get giddy when I rickroll someone. I love that joke! It's harmless fun! It's not lik Goatse, which left you just plain burnt out very soon. No, there's nothing soul-scarring about Rick Astley (well, unless you hated the 80's, but then you're a child molester, so fuck you), and the absolute most dickish I've seen of it was a browser hi-jack that makes you click "OK" for every line of the song. Annoying, but not horridly annoying as far as internet dickholery goes. So, as you may guess, I not only don't *mind* Rickrolling, I actually *like* Rickrolling.
So what do I have to say about Rickrolling? This: It's not fucking rickrolling just because someone plays the damn song. Seriously. Anonymous is not "Rickrolling" the church of scientology. The Target is not rickrolling you if they play the damn song over the speaker. And you are not rickrolling anyone if you go "I'm gonna play Never Gonna Give you Up" on your radio show and then proceed to do just that. Rickrolling is a very specific situation. It's when you make someone think you are going to be showing them one thing, but instead of that thing...BOOM! RICK ASTLEY! *That* is a Rickroll.
Let's show some examples, shall we?
You: Hey, buddy! Check out this link to a goat's anus!
Friend: COOL! I like goat's anuses! *click...BOOM! RICK ASTLEY!*
Congradulations, you have rickrolled!
You: Hey, listeners, we've got a random selection of songs coming up, from the eighties!
Listener: Hmm. Random songs? Ok, so they could be anything from the eighties. *BOOM! RICK ASTLEY!*
NOT A RICKROLL! Why? Because they were expecting random 80-'s songs, and by playing that song, you have given them just that.
There. I hope this lesson has been educational.