No, I am sure that they are normal, and partly because my mental problem which I have mentioned elsewhere, includes depression. In person, it is very hard to tell if a depressed person is sincere or sarcastic, I just wasn't aware until now that this problem (I think call it 'affect'?) is something I also ought to consider in a pure text situation.

In person I usually fake enthusiasm, but I am fortunately not that good at it. <--serious and funny, yet again. at least it was intentional.