So is this about not getting emails about new posts to subscribed threads? If so, that's why I haven't received any about some threads I'm watching and posting this evening. I was getting them when I first joined a few months ago.
I haven't gotten them either, BUT I don't miss them, my inbox was ALWAYS overflowing, so for me it's a blessing, I just go and look up new posts all the way down the page, or look at my note-pad for things I was researching for someone. Works for me.