Let me be clear. The rules permit this gameplay - there is no moral deficit expressed by the players that exercise the rules as they see fit.
I totally hear where you are coming from, and I know your title isn't quite what it seems, but I still feel compelled to say that...
...
just because it can be done doesn't mean it's either good or acceptable to the majority (even if it's allowed by those in charge.)
Yes, griefing is totally permitted by Frontier in Open, just like lying and hate speech is allowed under free speech laws in many situations.
That said, most people don't condone griefing, lying, or hate speech.
My point is, just because something is allowed doesn't mean the majority accepts that it's good or commendable behavior, even if we understand that said behavior is not prohibited.
TL;DR - Just because it's allowed doesn't mean most people like or even accept it.
just maybe - a tiny glimmer of possibility here - FDEV will realize that an OPEN PVE mode is actually a good thing.
Open PvE servers would be awesome.
One click and you can play with everyone else who selects Open PvE without ever having to worry about talking damage from any other player (i.e. non-npc).
Lots of open world games have this as the default option, and it's one I would love to see added to ED.
But just like crossplay, I don't think FDev has any desire at all to add it :-(
There is an open pve server "mobius"
Not. Even. Close.
Signing up requires jumping through hoops, and there's nothing stopping Greifers from lying on the application and still getting in.
Oh, and it requires a lot of time and effort on the part of the Mobius team which I applaud, but is also a real shame in the 21st century when these thing are so easy to code.
Edit: Just noticed this thing is on page 41! So if you're wondering, no, I didn't read all the responses before posting my own response to the op :-D