am i outdated? recently, i noticed ppl commenting in acronyms... ones i never heard of and cant really figure out

i have to ask my sister for translations.

iawtc - i agree with this comment
dnw - do not want
tbqh - to be quite honest
gtfo - (ghetto? lol no it's) get the f out
fwiw - for what it's worth
tl;dr - too long, didnt read

seriously, wha? lol