Of course security comes with layers, and if you're not comfortable hosting services publically, use a VPN.
However, 3 simple rules go a long way:
Treat any machine or service on a local network as if they were publically accesible. That will prevent you from accidentally leaving the auth off, or leaving the weak/default passwords in place.
Install services in a way that they are easy to patch. For example, prefer phpmyadmin from debian repo instead of just copy pasting the latest official release in the www folder. If you absolutely need the latest release, try a container maintained by a reasonable adult. (No offense to the handful of kids I've known providing a solid code, knowledge and bugreports for the general public!)
Use unattended-upgrades, or an alternative auto update mechanism on rhel based distros, if you don't want to become a fulltime sysadmin. The increased security is absolutely worth the very occasional breakage.
You and your hardware are your worst enemies. There are tons of giudes on what a proper backup should look like, but don't let that discourage you. Some backup is always better than NO backup. Even if it's just a copy of critical files on an external usb drive. You can always go crazy later, and use snapshotting abilities of your filesystem (btrfs, zfs), build a separate backupserver, move it to a different physical location... sky really is the limit here.
Being mainstream is exactly what I liked about reddit. It was the reincarnation of usenet. It has attracted all kinds of people doing all kinds of thing. Are you interested in swastika knitting? Piano jumping? Bathsponge sculpting? You can sure as hell find at least 2 other guys already doing it there.
To appease the artists worried about "fake" art somehow replacing the "real"art, while the big social somehow profits. They just didn't think leopards would eat THEIR faces...
If you come from IT, you never really quit. A little parser bug here, a small race condition there, or a fucking baking oven refusing to bake until you tell it what time it is. No hope, no escape.
I'm surprised as well. We put our posts up for anyone to replicate and republish, yet we still get mad when somebody replicates and republishes it. It does not make sense. Activitypub is an open network with zero privacy expectations.
I get the feeling that the US copyright is largely being operated on a pinky swear basis. For example - the current copyright on the original Bitcoin whitepaper is held by a well known con artist, simply because he was the first to register it.
They took something I love, and made it into... no. Let me rephrase...
During the communist party reign, the artists producing undesirable art often ended up slaving in uranium mines. I think it's time to revisit this tradition.
As far as I remember, RDP server in gnome (or any other exisitng DE) can't do multiple sessions yet. You have to be logged in via display manager to remote access the existing session via RDP.
Government is better at X... because it can steal stuff. Yay for the government, I guess... :D