Well the problem with that is slim is super busy, so we have to make do with what we have. Just because we can't increase the time right now doesn't mean spawn killing is allowed.
Its barely a problem so no reason to go on and on about it. The seconds usually work well for me and I'm able to move, but today on hang em high I noticed it was happening alot. All the humans even face the spawn points and like fight over the spawns. THAT is what we're trying to avoid, not the occassional spawn killer - but the repetetive spawn killers, the humans that camp spawn points to increase their credits or whatever.
Anyway - excessive spawn killing is in our guidelines I believe or our rules page I"m not sure which, so it is against the rules and should be enforced when needed (when game is failing to progress especially).