I brought over some guides from the MSFS Forum that could potentially be useful to people who don’t really know how to navigate the new site and UI (it took me a minute 
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Changing between Light/Dark Mode: Switch Between Dark and Light Theme - Forum Guides - Microsoft Flight Simulator Forums
Forum Formatting/Quick Guide: Quick Guide & Forum Formatting - Forum Guides - Microsoft Flight Simulator Forums
Guide to using Personal Messages: Guide to Personal Messages - Forum Guides - Microsoft Flight Simulator Forums
Muting or Ignoring Users/Categories: Muting/Ignoring Users and Categories - Forum Guides - Microsoft Flight Simulator Forums
Navigating the User Menu: Navigating your User Menu - Forum Guides - Microsoft Flight Simulator Forums
As always, these guides may differ a little bit from what is here but they give a pretty good understanding of how the forum works.