That's really strange. I have no idea. Has this been going on for awhile or did it just start? Does anyone else have this problem? Unfortunately, I can't test it for myself, because I don't use subscription notification.
(If 'stein's reply is directed to me)
I've (can't remeber the actual thread) replied once, seen the grammar error in my reply, edited it and *whola* there it was - notice on MY reply. Happened couple of times but not every time.
Still have absolutely no clue what is causing this or even when it started. Please ... if you could all remember back to the specific time when you first noticed this, it would be an enormous help. But right now I have nothing to go on.