I've been operating on wikipedia since 2002. Small edits here and there, I only created an account when I felt the need to add pictures.
During the last year I've noticed the alarming increase of a type of user that makes people swear never to use wikipedia again: the rulebook banger. I don't mean a rule nazi that sticks by the rules no matter what. I mean a person who will make it his personal quest to beat you and your edits into the ground because he has some sort of unfulfilled desire in real life. He literally knows all the rules of wikipedia by heart and will use them to enforce his point and his view only disregarding them or brutally enforcing them when it suits his needs. He will say your sources are not valid, remove your images and revert your edits just because it makes him feel important.
This my friends is the rulebook banger and he is the main reason people quit wikipedia.
In Firefox, the search box has a little pull down menu to allow you to choose which search engine it uses. Several popular search engines come included, but not Wikipedia. However, Firefox provides a page on their website listing more search engines you can add to that menu, including Wikipedia's search. To add Wikipedia, simply go here and click on Wikipedia in the list provided, and you are done. To activate it, pull-down the menu at the search box and click on Wikipedia there. Now you have a second Wikipedia search box. Unlike the search box in Wikipedia's sidebar, which disappears off the screen when you scroll down to read a long page, the Firefox search box always remains on the screen, ready to assist. (Keep in mind, typing Alt+F also places the cursor in the Wikipedia search box.)
This user feels that out of processdeletions subject to an administrator's whims rather than consensus damage Wikipedia more than any userbox ever could.*