Constructively, I think, from a certain point of view, it's easy to approach this hobby as figurative sandbox. When I was younger, around 19, so probably around 99/2000, I had this lackadaisical attitude about these games. Don't ask me where I played, I couldnt remember. Fuck, 1030, I'm digressing Back to the point:
I think it's easy to approach these games like its a community sandbox and whether your individual fucked-up-ness leads you to a place where you take a karate kick to all of the castles in the sandbox, even the ones other people are building, it doesn't matter. It's data, words on a screen, time spent, and within x# months/years the game will go away and it'll all be lost, right? If you get frustrated and destroy everyone else's creation in the sandbox, even your own, you're not destroying actual property. You can walk away anonymously. Life will go on.
Now, back then, I might have kicked a few assets when leaving a game, but I never did anything damaging, but my point is this:
Depending on who you ask, the level of value as to what is on these games and how lasting that value is, even if the game is only open 6 months, varies from person to person. It is, however, very likely that these unapologetic repeat offenders view this hobby as sandcastles made of ether and code where people merely donate their time, and that there is no actual, lasting value aside from what your own self seeks to get out of it.
The worst repeat offenders may, on some level, not take the hobby seriously outside of their own involvement, view the stories as important only so long as they're involved, and don't see the point in bothering much about anyone else's involvement or feelings because, in the end, very few of us know each other in a RL sense.
Which would explain why these people become unapologetic about the way they fuck with the sandbox. Because, what's the risk to them for doing so?
u fuckers. You don't pushback. You bodyslam.