mysterious groups

The tag 'mysterious groups' on WindowsForum.com covers content about underground societies and secret organizations, as seen in a thread discussing the '6 Strangest Underground Societies' by Thoughty2. This tag is used for topics exploring hidden or lesser-known groups, often with a focus on their secrecy and unusual practices. While the forum primarily deals with Windows and tech support, this tag reflects off-topic discussions about historical or contemporary mysterious collectives.