Pretty sure planes usually don’t fly perfectly straight lines A to B for the entire flight. There are often things to avoid, you might go from waypoint A to B to C to D with a straightish line between each. But you would want to avoid areas for various reasons. Go around high traffic areas you don’t need to be in, dangerous weather or just avoiding turbulence within reason, make sure you are dropping the chemtrails over populated areas.

It has been a long time since I ran MC servers, you could do all of that with self hosting though. I still remember around 2011 running a server at school with a PC we found in a skip. Glorious 750MB of RAM! It ran alright though for a room full of people.

Its been a long time since I played, wouldn’t the best protection from that just be not broadcasting the server to the open internet? Never had an issue with servers that were technically fully open but only telling friends about it. I suppose whitelist is better than security through obscurity though.

I would think it depends on the project