macports' hardlinks and time machine backups

[db]

I perchance stumbled upon this post [1] and couldn't find what's the actual 
state.

In my system du reports ~8.8G for my prefix while Finder ~9.4.

What's changed from then?

[1] https://lists.macports.org/pipermail/macports-dev/2010-May/011938.html