Francois said:There's nothing wrong with being facetious ;-)
Anyway, I will sometimes use common forum abbreviations, like IMO, TY or AE. Some might frown on them, but well this is a forum and I do it deliberately from times to times. This is more of a case of choosing one's own words, style, language level etc.
Francois said:I am the one who is sorry. What do you expect to learn from me, as far as English is concerned? You're the native-speaker, and I'm a humble ESL learner, with a bit of a cheeky streak ;-)