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.

What a group of assholes to down vote you for asking. It’s pulmonary tuberculosis. I mean that’s the main thing that comes up when searching. It took a couple minutes to find “powers that be” and I’m not sure that that fits perfectly with the flow, or that it would be the most common acronym. I’d assume based on the context of the thread. On the other hand “please text back” is probably more commonly used.