Ok, deep-
let me answer the question for ya.
well, "kekeke" represents the sound of laughter
-when one is being silly about the fact the person/i is laughing..
-when the laughter is supposed to be a *sneaky giggle*
in English language,
it seems *hehe* does the same to how people use
*kekeke* in Japanese language..
In Japan, *hehe* sounds more absurd and weird
just like how you feel about *kekeke* being used in Japanese language..
But that does not mean that people
go ahead and use this express of laughing *kekeke* openly in public..
online, we just use this chinese character meaning laugh..so
we would do this: (laugh)
and that supposed to mean *hehehe* or laughing or whatever you do in the cyber world..
so that *kekeke* seems to be only found in the comin world..
it is the language of otaku..geeky maniac..
hope this clears your mind, deep.
btw, ask skebe jijii to answer this question..
peace
-kumi