I'd just like to inform you that I've finished a guide about securing your communications. It's in no way comprehensive, but I hope it will help you start out!
EDIT: I hate the feeling of tiredness, I improved the guide according to community feedback but I can barely even consider this and improvement. More work is necessary.
Maybe, but these guides definitely aren't themselves ever finished so feedback is always welcome. I just hope I can help ease comrades in what is basically absolutely necessary in today's times: computer literacy.
A wiki might just end up a natural progression from the guides I make, and it will definitely contain more info than just secure communications.
As the guide mentions, it's very much troublesome to Americans, but not for example Polish people. You can walk into any corner store, buy a sim card starter for 5zł ($1.25) and have a phone number that signal will accept. All of that anonymously.
If other countries have similar possibilites like Poland, it should in no case be looked over.