@fla Here are a couple small #Diaspora critiques that come to mind as easy to fix:

1) Default font size should be 16px for accessibility. 13px is too small. Easy to change in the browser, but no reason the default should be so small.
2) The sidebar should be collapsible; once you scroll down, it becomes wasted screen real estate
3) It'd help to have more inline documentation, particularly around privacy controls. "Ignore" vs. "Block" is unintuitive, for instance; but critically important!