Regarding your first question, I assume that this forum area - the Fatshark Lounge - is not accessible to everyone but only to users with trust level 3.
Taken from the badge description for the Regular badge:
This badge is granted when you reach trust level 3. Thanks for being a regular part of our community over a period of months. You’re now one of the most active readers, and a reliable contributor that makes our community great. You can now recategorize and rename topics, take advantage of more powerful spam flags, access a private lounge area, and you’ll also get lots more likes per day.
Also, taken from the general FAQs concerning this forum as a platform:
Users at trust level 3 can…
- Access a secure category only visible to users at trust level 3 and higher