Wake Up...

[prpr]

Out of context and no references, which makes it harder, but:
CGOC = Commonwealth Games Opening Ceremony
MM = probably Maintenance Mode, but context is important
LLM = Large Language Model (that's now a 'well-known')

I couldn't find as many examples as I thought there were

Ha!

And, just to annoy BH (Black Hole), AFAIA = As far as I'm aware.

 

[EEPhil]

Ha!

I only went back about one year when I lost the will to live and I managed to close the search tab by accident.
Very difficult to instigate a search that goes "find posts by prpr where there are abbreviations".
(It was meant as a semi-humorous aside - I did say I could search and find the abbreviations you used. Unlike "GD". Who knew?)

 

[HugeMaximum]

Favourite one here on hummy.tv is IIRC, as it is a CYA for grey matter recall issues.

Spoiler: Very User-Unfriendly Spolier

IIRC = If I recall correctly
CYA = Cover your ar$e

 

[prpr]

I only went back about one year when I lost the will to live

That seems well beyond the call of duty. I think I'd have lost the will long before that, and I wrote the damned stuff!

RMV = Recollections may vary = He's spouting bull$h!t but we're too polite to actually say that