I've always wondered- couldn't a spectator give away the locations of traps, starting positions and respawns to teams? I know this isn't currently exploited, but hey, it is a viable option.
Yup. You could say "Hey red team, the blue Pyra just respawned at 3,1! Oh yeah, and that Goldfish is at 50% health, and they have chem spray running, so don't bother trying to burn them too much."
We even have a name for that strategy. It's called "being an ass".
So you can try it if you want, but I wouldn't necessarily recommend it.