Please understand that we do actively monitor the forums, even if we do not reply at all times, as many concerns have usually been addressed in other posts.
Making no build areas out of POIs or the Shattered Springs wouldn’t prevent those areas to be closed by walling them off, and it would have dire repercussions on private servers and single player sessions in which players have used those areas as part of their builds.
Since official servers aren’t actively moderated, private servers usually enforce specific rule sets regarding building and raiding that provide a less ruthless experience with little to no griefing.