Just TP from place to place, much easier.
spynoob, they're exploiting the ignorance in code. If you expect Mojang to test things, you're going to have a bad time...
He is talking about the GON server, t'was brought up earlier when he was in the server.
It might be due to the nether / portal bugs which are going to be fixed in 1.3.2. Although with mcmmo giving glowstone, and nether warts being able to be grown in the overworld, there really is no use for the nether in the server anyway. Those are the main things people go to the nether for.