And you can't read.
As an admin, you are expected to have a level of tolerance and you are supposed to assure that EVERYONE knows and will comply with a rule. You simply said the rule in chat only once, and you gave no chance to people who missed it. You are a horrible admin.
and you see the 'lol grav is mad' before the spawn kill? pissing off an admin is never the way to go.
What he did is in NO way wrong. As a player, it is alright to speak against admins and to point out flaws in their job as an admin.
Gravity Cat needs to lrn2spawnprotection
Gravity Cat failed to provide a space where he could not be hit by explosive projectiles. Gravity Cat is mostly at fault in this whole situation.