If you actually register so you can use all it's features you might change your opinion. If there is still something you don't like, specify what it is so someone can answer.
They would much rather have you making these questions, than having an expensive and beautiful site.
flimsy
your* you mean?
Because all questions with answers in the world present at wiki site.
The site is designed to answer simple questions, if a paragraph is required to give a full answer, question is inappropriate
No. A 'wiki' is any site that uses the wiki system of public creation and editing. Wikipedia is most well known site that uses this system, but that does not mean any site with 'wiki' in, is in any way related to the Wikipedia.
The most well known site using "the wiki way" is probably Wikipedia.com
You can copy Wiki content for use on your own site - BUT - you must acknowledge on your site where the information came from.
Wikipedia is a wiki because the underlying software (Mediawiki) has the features commonly associated with a wiki site. The word wiki comes from Hawaiian for quick and a wiki site allows the content to quickly change since anyone can edit it.
a poorly designed hypothesis
Wikipedia
Wiki answers... Answers.com