Both the profile and the dashboard now show less information than they used to. The icons are a nice touch but totally irrelevant, and are not effective on a quick glance.
Meanwhile, the streams constantly show redundant information: e.g. 10 successive commits+push or wiki edits on the same project (happens all the time in my feeds) consume 10 distinct rows - why not collapse them together?
The launch bar was actually a cool idea, but it's more of a hack than a useful tool. And pray tell me what good does the /launch page do? Why should I ever use it as a landing page?
And don't get me started on the push performance, which is abysmal and feels like it has constantly been degrading over time.
I'll say it again, I <3 github, and they're a truly awesome team. But for the past several months every single change they've made was a big "wow, new X, let's take a look" followed by a sad, soft "meh".