@Phaedrus > I guess I didn’t pass

LOL, no it's not supposed to show up - but **the lack of a space between the Hashmark and the following text** did not render it as a Heading 4 as you intended. E.g :

##### This is a Heading 4 line.

#####This is **NOT a Heading 4** line.

You are very welcome -- I had thought that Markdown would really enhance your posts. Glad you took the tutorial and enjoyed it. It's really excellent.

A tip for debugging Markdown enhanced posts -- if I am using fancy formatting, a good way to make sure there's no errors and everything is perfect is to :

* Set the post Privacy to 'Direct message' and add an address you own somewhere.

* Create the post with all the intended pizzazz. Post it.

* Then look at in (either on the remote instance you addressed it to, or in your own profile, under Direct Messages).

* Anything off, not right? Use Delete/REdraft to bring the post up for editing. Send it again.

* Check it until it's perfect. Then...

* One last Delete/REdraft -- this one to Change the Privacy level to Public (or other level if desired). Remove the DM's attribution address from the message.

* Hit send and enjoy a perfectly formatted post without ever showing the intermediate staps in public view.

I use this method and it works excellent. Good luck!