Would it be plausible to remind people to vote for Armageddon much like the IRE games do? Allowing it to be toggle-able so as not to break immersion for some players?
If not, what about placing a link in the main menu?
It'd be a lot more helpful for the mud's player-base I think instead of spamming the 'Please go vote' topic.
I'd be just fine with either iteration.
Just stick it in the MOTD.
All of the above!