The majority of the roguelike channels are on WorldIRC? That's bullshit!
If your "roguelike channel" means all channels that have something to do with the roguelike genre, you don't seem to know the amount of roguelike channels on IRC. Check the QuakeNet's roguelike channels for example, there are roguelike channels there. Then check a few popular servers more. You'll see that there are many large and active channels scattered across IRC. It's not just WorldIRC. Who likes Angband and its successors anyway. (The last sentence is not a flame bait, don't eat it!)
I'd like to hear some good reasons before moving. Is there something on WorldIRC that QuakeNet can't provide? Of course moving is a good thing for those who hang on WorldIRC, but there are those who don't want to add new servers to their favorites. I know I didn't want it before #RGRD, but I couldn't change that.
I guess I'd keep visiting #DoomRL even if it moves, but I don't see it as a positive thing. Maybe I'd boycott it for a while if you can't think any good reasons to move. I didn't like adding a new server to my favorites when #RGRD was formed, WorldIRC, yuck. Who suggested this anyway?