I don't know about you lot, but I feel I have failed in some way if i've posted several replies across multiple threads, signed in 5-12 hours later and have no notifications. So i propose that perhaps if this happens the system could send you a token notification that says "Well, at least you tried". Or perhaps I'm just an attention whore since the update, though i suspect it's probably that since we have the abilities to reduce our own personal audience and exposure and generally circle jerk with a smaller audience than before bungie.next, it hurts that little bit more when someone doesn't reply to your brilliant analysis of a troll post or a news article that someone has brought to the general attention of the community. All i'm saying is that, if you see a well thought out and interesting reply to a thread that hasn't received the attention you think it should've - reply to it; I suspect that you'll make the author that little bit happier.
I know I'm going to cop some flack for this, but I enjoy going back to the old forums and re-reading some of the discussions we had about a possible notification system, particularly the comments about how it would be "pointless" and "unnecessary".