Forum post -> Wiki invitation

[Geert Poels]

An idea to get more people contributing to the Ubuntu docs :
Why don't we send every first-time poster an invitation, a couple of 
days after his post ?
Something like :
"Thanks for posting a question on the Ubuntu forums.
We hope your problem got solved.
If you got a little smarter on using Ubuntu, maybe you'd like to share 
it with others ?
Can we invite you to add your knowledge into the community documentation ?
etc.
"