Well here I have prepared a mini workflow of Ubuntu. Hope this helps.
As you can see an authenticated user is requeried to post wether a blog or a wiki. If you want to give some tips to the community it'd be better to post a forum topic(Respect the criteria for threads in the Tutorials and Tips section). But sometimes the information provided could be good enough to be as part of a wiki page. Do not worry this work of moving one page to another will be approved or discarded from the forum wiki team wich has a Chat IRC to discuss those points.
If you are an expert or have a solid documentation enough. Then you may want to post a wiki page.
Hope these workflows may help you to understand how information flows in Ubuntu pages.