[Assailant]

I see two parts to this:

Question: Spawn camping - is it lame and can we kick the jerks doing it?
Quick Answer: Nope
Long Answer: Play better.
Long Long Answer: Work as a team, build ubers, go out secondary doors and continue to work as a team to push the other team back. Some maps this is more difficult than others, especially with a coordinated camp. But if everyone works together (remember, people that stand by the doors to open them just so the team can get killed are technically griefing at that point), it shouldn't take more than 60 seconds to break the camp. Treat it as a challenge, not a problem

(Emphasis mine.)

Noted. However, Tiki was in fact propping the spawn door open. With two people on each one (dropping to 2 v 1 after one of the blue players left) there is a very finite amount of strategy that can be employed.

Being an obnoxious jerk

I think this might apply here at least slightly. When the instant respawn 2Fort server is full, it's my favorite place to play the map. I actually find 2Fort kind of boring from a competitive sense until it is overloaded with players who are continually respawning. Then it is glorious TDM with very rare instances of flag capturing. Often when the server is as sparsely populated as it was last night, the players agree to a more silly form of TF2 ... melee or taunt kills only etc etc. I maintain that when server is practically empty going full tryhard and spawn camping is kind of a dick move, whether or not it is against the letter or the spirit of the SourceOP rules.