From the sidebar:

Some acronyms you might see.

• PTB - Power-Tripping Bastard: The commenter agrees with you this was a PTB mod.
• YDI - You Deserved It: The commenter thinks you deserved that mod action.
• BPR - Bait-Provoked Reaction: That mod probably overreacted in charged situation, or due to being baited.
• CLM - Clueless mod: The mod probably just doesn’t understand how their software works.