Counterlulz
The enjoyment taken out of ruining someone elses fun. Especially on a messageboard/forum.
Kiko: Bugman89, why did you ruin it?
Bugman89: Because I also get lulz from ruining you guys' fun. I call it counterlulz
Bugman89: Because I also get lulz from ruining you guys' fun. I call it counterlulz