Those are good conclusions.

I would have added that it'd be a good idea to be clear about who your audience is and how you can target them. This avoids alienating the 'experts', who can see the disclaimers' avowed target group, reason they are not in it and either stop reading or read it as an example of pedagogy.

You can also try to target advanced outsiders by submitting to places like Hacker News or Reddit, something which has worked fairly well for my own 'beginner' pieces.