From what i can interpret from the rules, no, but it might fall under "offending or insulting a group of people, and it might fall under spam if you constantly tell people "look at this save its really cool" constantly, and obviously; using a CGI script/mod to produce the rickroll is not allowed. My opinion, personally, is that you shouldnt make rickrolls or spread them unless you want people to mass downvote/abuse you. I am not a moderator, and my thoughts on this is more than likely not great advice, but I suggest you ask a moderator before spreading/making rickrolls.
how does it fall under "offending or insulting a group of people"?
Ahhh, ok, thanks for clearing up that little "debacle" if you can even call it that.