I see it all the time here - people run behind doors, close them, and then spam them just to troll people. Sometimes its in a room with only 1 door, trapping a good amount of people. Is doorspamming punishable, and if not, should it be?
Door spamming is technically not against the rules, but if it is excessive, I usually warn people to stop, then teleport them if they fail to do so. It's simply an act of trolling.
Like prop-blocking, this is not punishable without admin discretion. A simple !tp command usually does the trick with cases like this
Players are allowed to spam the doors, however if it interferes with the gameplay in any way and annoys another player, it can be considered harassment, therefore, the player would be teleported away.
In some rare circumstances, players who are known to block doors, door spam, or cause general interruptions of the core gameplay have been slain or even punished more severely for this behavour. Most staff encourage to avoid this kind of playstyle.