Quora sucks because:
When they don't think you use your real name, they ban you from their site. And you can't change your name.
You can't deactivate your account 'til 6 days.
Do not have enough words to comment about your own question
It's good because:
You get to learn other people's veiws (some not so helpful)
Freedom of speech! (Sometimes)
Great questions (sometimes)