You know the etiquette that dirt jumpers have for other people's trails? Do you not feel that it should be the same for singletrack? If you went through the back of a berm and trashed it, would you just think "They should have built it better" and carry on?
Anyway, as I said, but will clarify again, it is the fact that the whereabouts of the trail have been published on here rather than the fact that people are going to ride it when they see it. If they didn't know it was there, they wouldn't find it. See now?
I am no Elite, I'm probably no better at riding than you, but I wouldn't tell the World and his wife on a very popular forum if I had found a trail that is little known and that someone has obviously put a lot of effort into crafting.
There would be a wine bar on my land, for those types who like wine bars. I bet you like wine bars. Shame.