It might sound OP, but don't freak out! Yesterday, I killed a momentus for someone on smp1, but died in the process. Luckily I had my voter armor, however, I spawned at a bed from FNM. I was really mad, because I had to walk all the way back to spawn. Here is my idea: there should be a command like /set spawnpoint only at the waste/frontier portals. This would allow the player to reset their spawnpoint, thus spawning at the portals. I think it would prevent random bed spawning.