I have just read an interesting article Top 10 reasons why you should quit Facebook. There are a lot of complaints about privacy, unethical behavior, technical incompetence etc. which are definitely relevant and significant, but the truly gem there is located at the end of the text as the no. 1 reason: “the application itself sucks”. Yes, it badly does.

I created my Facebook profile because of an online marketing campaign in my work and since the first moment I wondered why so many people use a love such a terrible web application as Facebook?

It has really horrible user interface (UI), for instance:

• Non-intuitive navigation – the most items are somewhere else than you
  would expect and it takes time to locate anything
• More ways of reaching the functionality – You can choose more ways of
  accessing certain functionality, which is not good itself. The worse is there
  are different options depending on the way you navigated (for example reading
  external RSS feed into Notes).
• Important features missing – Why we can not edit the post in we make a
  typo? No editing, just delete and re-paste once more … with another
  typo maybe? :)
• Bugs – Even the core features have bugs. If you use cut&paste to fill
  the wall post and have longer text, you get wrong alignment. The only way to
  keep it correct? Retype!
• Options hell – The ton of different settings seems to be designed only to
  annoy the user to be kept at the default.
• Low availability – I wouldn’t declare myself as a heavy Facebook user,
  but even though I regularly get “Page is currently not available, try later”
  message or load of the page just dies and the content remains disabled in
  grey and the only way is to reload the page – even the links on the page do not work
  anymore?!

That reminds me of another “UI comparison” that hits the nail – Regular TV remote vs. Apple remote.