This case (and other similar recent ones) makes me think something must be done about users systematically both deleting their questions after they've received a satisfactory answer, and deleting and re-posting questions to gain more attention.
makes it impossible for potential answerers to check the asker's history - is this their first "write my code for me" type question, or the 25th?
allows people to try and get entire projects co-written by Stack Overflow (as in the case linked above - every step in the project, a new question is bound to pop up)
denies answerers the recognition they deserve for their contributions (in the form of votes and accept marks)
allows users to "polish" their profiles by making "stupid" questions disappear
Is virtually undetectable except if by accident (if you saw the same question an hour ago)
While not actively damaging the community as such, and probably occurring relatively rarely, this is really, really low behaviour, and extremely unfair towards those who take the time to answer.
Does this need to be addressed somehow?
Is a limit on the number of questions that a new user can delete necessary? I hate the idea really, but in light of this kind of abuse...