To lead an anarchistic project is a paradox--the only way to successfully do so is to act with humility, to question your actions more than you question those of others.
The NPOV is an ideal, and should be recognized such. True neutrality is impossible to achieve. Thus, we must remember that every contribution to Wikipedia is biased. Rather than giving up and deleting everything, we instead try to contextualize, and distinguish the sources of knowledge: scientific, historical, inspirational, cultural, etc.
Emphasize the connection between code and culture. Celebrate and require documentation and a mission plan.
Be bold in updating pages. Propose new ideas for how to use Wikipedia, from WikiProject to Project Sourceberg.
For anyone who wonders if this can be done, just think for a second about how Perl has developed and grown, nurtured by Larry Wall.
Wikipedia is a noble attempt at a limited anarchistic society, and we must remain vigilant.
This means that to follow the spirit the GFDL means that the content of Wikipedia's pages should be considered a public resource which happened to originate on Wikipedia. Perhaps some of the pages would be best served as being primarily worked on by a completely different project; the GFDL ensures that wherever a new project takes credit for their work, Wikipedia also gets credit. Wikipedia should not try to "brand" their work in the way that, for example, DMoz has, which has a very different kind of license.
This does allow bad, selfish, or inconsiderate people and groups to not give credit where credit is due: note how the GNU Project is ignored by Linux partisans, even though the "Linux" operating system (Red Hat Linux, Yellow Dog Linux, etc.) is really an instance of the GNU operating system.
But that's the sacrifice all people who decide to cooperate more than steal make. The GPL and the GFDL are great licenses for people who pretty much just want to share, with just enough protection that other people can't take the knowledge and lock it away.
And I think it's a small sacrifice to make since the benefits are so great.
Politeness too is a worthy goal. But if calls for politeness come from an all-powerful cabal, which can kick you out, delete your work, etc., well, you can determine what to call that. Fortunately, that cabal doesn't exist on Wikipedia.