HTG allows editing of posts for only 30 minutes - I never understood the reasons for that. Where it is especially hindersome is for the tutorials.
I publish a lot of tutorials (mostly on other forums). My experience is that tutorials have to live. Many times questions and misunderstandings come up as the tutorials are being used and applied by other people. Then it is necessary to update and enhance tutorials. On some tutorials I also had to make changes because the particular system or program facility had changed or functions had been added. It has also happened that a tutorial had plain old mistakes.
I therefore propose to allow tutorial updates for an unlimited time.