If you use 'haha', you're probably old
newyorker.com
newyorker.com
I'm 32.
Also, "hehe" means "only mildly amusing, but I'm not busy so I'll keep talking". (Unless you say "hehe" after something you wrote yourself, in which case it's creepy.)
I'm 29.
Or a ham radio operator, HI HI.
ha haha hah aha ahaha 'ha ha' hahaha HA HAHAHA hahahahahahah haaahaaa lol LOL LMAO lawl elohel 'ha, ha' ha. heh hehe bwahaha 'ha,'
though it's really hard to describe exactly the differences between them.
context: I'm in my twenties and grew up using AIM and FB and playing MMOs. I think those are all relevant to the exact 'vernacular' I've ended up with.
Kind of like how animal sounds are very different across countries and cultures.
Interestingly, Korean internet somehow settled on ㅋㅋ (literally, "k k"): the closest word I can think of is 크크 (keukeu), which is... well, the kind of laugh a villain might make after explaining to a captured hero how he will be thrown into an elaborate death trap.
(And don't believe some internet sources that say Koreans laugh "kekeke". It's simply because the sound I wrote as "eu" ("Close central unrounded vowel", or /ɨ/) has no English counterpart, so people wasn't sure how to write that in English. Besides, nobody's gonna pronounce "keukeukeu" correctly anyway, so why bother.)
lol -> lolz -> lulz -> lel -> kek
Not it's all about 'lel' or 'kek'
If it's really funny 'top kek'
[1]http://www.ted.com/talks/john_mcwhorter_txtng_is_killing_lan...
I'm not sure the exact reason, but it does make all the letter dits. 'ha' is spelled .... .-, but 'hi' is spelled .... ..
Oh and I'm 22 ;)
I don't think the connotations have changed!
english version: http://en.wikipedia.org/wiki/Water_Margin chinese version: http://baike.baidu.com/view/11282.htm