Hey, I want to give two answers for this post, first as a staff member and then as a Sponsor player which I actually am.
As a Staff Member:
First I want to thank you for taking your time to write such a post. I want to let the entire Network Community know that we are working on Network and that we are listening to you. You cant imagine the many changes we have done under the hood, and well you also can see some of them like Glaskerville, The command blocks to TP you back (still is under development), the changes in AC map and fixes, and some of the bug fixes we all know, but there are still many things we are doing, mainly focused on fixing bugs and improving everyone's experience.
So we will listen to this post, but for doing so, we need everyone's opinion. Each comment you make to this topic might help taking a decision or doing something to improve this. Thank you again to all the ones who take their time
As a Sponsor donator:
I couldnt agree more with many things you said. Sadly it wouldnt be that easy to fix the issue, and it isnt really possible to add a "Spawned by" tag to blocks placed with WorldEdit. The only way to do that would be to store in a database each block spawned with creative, and when someone breaks it check in that database if the block is in that list, and it would just be a performance mess. (And of course this would need to be a custom plugin)
So what about World Edit?
Well I dont really think its a feature Sponsors should have. Why? Well firstly because they have GMC which basicly lets them build everything they want. The truth is that you are in a Survival server. What is fun about a Survival server? (at least for me) Well, to play and get everything and do my best to be the richest one in the server having all the items and etc. If I do that with gmc, then well there isnt that much fun because I already have everything I could have, there is no goal, just create a beautiful house and you are basicly done. WorldEdit is just an addition which shouldnt be in a Survival server, in the Creative one yes, but on a Survival one not. It just brings more problems than the ones we have (not only with duppeds but also with destruction of protected zones) and it isnt something that really improves the experience of a Sponsor player (again this is my personal opinion of a Sponsor player I am).
What about creative in particular?
Well, in part I really explained that having gmc isnt something I would desire for a Survival server because it basicly ruins the experience and my desire to play such a server, but again, Im talking about myself. We might find a solution to this topic, and all your suggestions are welcome. For now I find it hard to remove the command because there are people who actually bought the rank for having creative. We will improve compability in order to prevent abuses, and I cant wait for your suggestions and for what you think about that command.
Conclusion:
First thank you again for bringing this topic to life. We will consider everything that is talked in here, we will think for solutions and fixes to this isssues, and of course when we do something about it we will let you all know. Cant wait to read what others think. Thanks!