As a website that has a constant stream of content, bitcointalk should have it's own filters. Not every user of the forum likes all kinds of content. However, most people like to use 'Show unread posts since last visit.' so they catch up with what's hot since they last logged in.
Let me use my prefrences as an example.
If I was to use the
Show unread posts since last visit link right now, many posts could come from non-English boards, that's obviously content I'm not interested in. Secondly, I wouldn't want so see any content where the OP contains the words NSFW/NSFL etc. And lastly, If I don't want to be notified about the replies in certain posts.
To sumarise:
Board filter: Off-topic, Altcoin announcement board, Games and rounds board, all non-English boards excluding the Greek one.
Word filter: Any post where the OP includes "NSFW", "NSFL".
Post specific filter
So there we have it. Three simple sorting filters that would optimize the latest post feed to everyone's preferences.