You end up lost when you see there's a new reply on a thread you've been following (post count is 67 but yesterday it was 66) and then you go trying to find it

You end up lost when you see there's a new reply on a thread you've been following (post count is 67 but yesterday it was 66) and then you go trying to find it for about five minutes. You end up re-reading about 30% of all the posts until you finally find what you were looking for. Repeat until you've read the entire thread 20 times. But that's not a bad experience compared to when you go read a threaded conversation for the first time when there's over 50 posts — the whole thing is just unreadable. Add to this that even the most technical people can rarely reply to the right post 100% of the time.