Ever since Facebook woke up and started a series of relatively major changes to its user interface, I've been finding it frustrating to use.
I'm not alone of course - many people have said the same. I'm not from the "all change is bad" school of thought, so it wasn't just that a few buttons had moved around - which seems to be the gist of most of the criticism I've seen and heard.
For some reason, I just started to enjoy using Facebook less. The stuff it showed me seemed less relevant, and I felt less engaged.
I've been puzzling for a while about why exactly this is, and I've come up with a theory.