The anger you've injected into this post is, I think, just but uncalled for. You take it personally because of your hours of thought, conversation, ideas and effort, but labyrinth maps have been drawn and shared (I had one myself, once upon a time) since before your hours of thought, conversation, ideas and effort. If a public maze map had been posted before your thoughts, and you had the thoughts anyways, would they not still be as valuable to you? I would think they would be, perhaps even more so.
The eternal struggle with spoilers is this: If you feed a new player answers, they lose the joy of discovery. If you don't give them enough, perhaps they run away. I remember Mur saying in a forum post something like "I wonder what would happen if we told a new player every spoiler". I think as a community we take spoilers too seriously and keep secrets too easily.
Here's my idea to convince you of this: I didn't beat LR guards with my own solution, it was told to me by a friend. I was also given a pretty good clue to the solution of the broken pattern puzzle and still I've never bothered to solved it, I just don't have the patience for some things. Does that mean I failed some MD "test" or "barrier", or that I'm not a valuable player? No, I most certainly don't think so.