Q1: I didn’t see my list posting ?

You can check here to see if it posted: http://lists.hidden-tech.net/pipermail/hidden-discuss/

1) Be Patient:

The HT list is a moderated list moderated by volunteers  Рit is not an instantaneous release list.
It can take from 10 min to 24 hours for a post to be released – based on moderator availability.

2) You might never see your own postings.
Your list profile might be set to ‘not metoo’ – which means you will not see your own postings.
You can see your profile by logging in, under ‘My email profile’