I gotta agree with @rtom, there's some things that seem like they need tweaking.
In my instance I was able to create a new tutorial which covered fixing issues and expanding on things from an older tutorial that no longer worked. The content was to long to post as a comment in the original, hence creating a whole new one. I got it all written and posted and then went back to the original to add a link to my new one in the comments, only to have the link removed since I didn't have 500 rep. Seems like if I can't post links in comments I shouldn't be able to post whole tutorials, and vice-versa.