abbreviations, efficient communication, thank chatters

Isn't it great how the Internet has made written language more efficient? I think we have IRC to thank for creating the world's first informal text medium (before the internet, even letters among family members seem unnecessarily formal)

Almost half of the abbreviations I use indicate an epistemic weakening, following the CYA principle:
AFAIK
AFAICT
IIRC
IMHO

Exceptions:
BTW
FYI
IOW
IRL
LOL
WTF
TTYL

I wish English had short ways of pronouncing of IIRC, IMHO, FYI.

I should adopt:
AFAIU: "as far as I understand"
FWIW: "for what it's worth"
IIUC: "If I understand correctly"
ITYM: "I think you mean"
IYKWIM: "if you know what I mean"