Why can you noclip underground w/o probs in dungeons but in the open world dc?

[crunk001]

Title is my question. Why do I get booted when I noclip under "the real world" and dont have any issues noclipping in dungeons / raids?

[gippy]

Probably due to back in wotlk, the game was full of people teleporting underground stealing nodes. It was pretty crazy the amount of people doing it.

[zycamzip]

Each "Server" is built up of several actual servers. I would guess that the protection software bogs down the server too much, and it was decided to leave it off of raid/dungeon instances.