So there's no such thing as a C++ expert? That statement is dangerously close to a No True Scotsman: IME even people who seem to fit any reasonable definition of expert (committee members, compiler developers) still make memory-safety mistakes.
This is Poe's law territory, e.g. a lot of your own comments sound very similar to the parent, and there are other emoticons more commonly used to indicate sarcasm/joke.
Heh, I think that's possibly the only virtue to sarcasm: it confuses the pedants. I use friendly smileys or the word "heh" when I'm trying to be jovial, and I'm willing to give that poster the benefit of the doubt. :-)
> a lot of your own comments sound very similar to the parent
Which comments?
> there are other emoticons more commonly used to indicate sarcasm/joke
I think any common standard about something like this probably only applies to a narrow clique.