Let contributors receive voluntary donations for their work

A possible solution would be to set up another wiki, call it Wiki-paid-ya, which works just like Wikipedia except it has Google AdSense enabled, with revenues distributed to contributors who opt-in to be paid. The licensing would be compatible with Wikipedia, with the aim of mirroring all the content to Wikipedia, after it has been up long enough on Wiki-paid-ya for Google to recognize it as original there. If enough people are interested in reading the content on Wiki-paid-ya, they will generate AdSense revenue to compensate the contributors there. The content will still be available on Wikipedia (after a delay of a few days or weeks), and won't create any problems with advertising on Wikipedia. All the potential problems from advertising should remain isolated on Wiki-paid-ya.

This would have the added advantage of keeping all contributions beyond the reach of Wikipedia's deletionists. They could delete the content from Wikipedia but not from Wiki-paid-ya where it appeared originally.

The drawbacks would of course be all the usual drawbacks of starting up a new wiki - porting a kazillion templates and help files, attracting a critical mass of contributors, etc. There would be the additional problem of dividing up the AdSense revenue. (If we think there are editing disputes on a free site, try throwing money into the shark pool.) However, I suspect a lot of people who want to contribute content to Wikipedia, to be distributed freely and edited mercilessly, wouldn't mind putting their work first on a site where they could get paid for some of the views.