This looks good, especially if the pop-up is possible. I think that will all depend on whether Discourse supports that.
I’ve mainly some word choice comments that can be accepted or ignored as the main concept and over all structure looks good to me.
Many of the problems you have can probably have a solution here.
Please review the Beginner’s Tutorial and User’s Guide for a solution before posting
Have you looked in the forum for similar problems?
Move this to be the second bullet point.
You should prepare for upload the relevant parts of the conf files (items, rules, sitemap, services) when dealing with textual configuration files.
Identify and gather relevant parts of configuration files for posting. Use screenshots or description when using UI based configurations.
You are using Smarthome Designer if textual configuration is involved in the issue. - if Smarthome Designer is not installed, you should follow these steps.
If you are seeing parsing errors or “not found” errors in your logs load your configuration files into SmartHome Designer to check the syntax of your configurations before posting
If possible it would be great to include a screenshot of the buttons. Also, it is worth noting that these buttons do not appear when posting from the mobile version of the forum.
I would strike the CPU/RAMP/storage part. It is really sufficient if they just say "Raspberry Pi 3, VM on ESXi, old laptop, etc.). I can’t think of the last time knowing what the GHz of the CPU help me solve a user’s problem.
Java platform used: which java platform is used and what version
I think we should use the proper term here: Jave Runtime Environment
One other problem we may run into is for new users they have a character limit for new posts. If we start to run into problems where what we are asking for causes new users to break that limit regularly we may have to cut back on the amount of information requested.