There's several ender pearl glitches. My understanding is that they may be allowed or not allowed and you should ask if you are unsure. For instance e-pearling on the roof, and various e-pearl transportation glitches should be genearlly allowed. However any kind of e-pearl glitch in spawn, vip area, etc. is not ok as it states in the rules. I disagree with some of the other replies in that it's not exclusivly limited to getting on the nether roof. Other specific cases are curently allowed based on some previous threads.

Disclamer: I am not a mod. Don't take my word for it.