The 80s were 40 years ago. The security landscape is so different now, even if it was a perfectly valid book on how to actually hide anything then, it is not accurate at all to the current environment and internet. There may be some physical security things that apply, but even with those there are likely things that now need to be taken into account that did not exist then.
I think because simpleX is more open source, self-hosted, and maybe slightly more anonymous. Not sure how the usability trades off for that if at all because I haven’t used it (I mainly use signal and discord)
It also doesn’t seem to be a mass migration by any means, just that simpleX is a bit better if you are super hardcore about your privacy.
Depends on the university but for mine in particular discord is the primary communication method for clubs, and also friends to a certain extent. I think discord is decent for privacy but I don’t fully know, what I do is have my publicly visible profile be pretty anonymous and not tied to me.really at all, but then you can make server-specific profile names with your real name.
I’ll admit I’m not the most privacy-oriented person, I try for a somewhat decent level of privacy (using Firefox+unlock, bitwarden, signal for family chat, a few other things) but also do have Snapchat for instance, which is one of the worse things I do. This does remind me tho that I should try and convince my roommates to use signal instead of SMS because they have iPhones and I’m android so it’s kinda awful for anything but text
I have a couple Minecraft servers using pterodactyl :3
I probably will self host a lot more when I have my own place and money tho