Please inventory all of these historic tech moves that have been lost.
I'd like to see a factual post of legit tech moves and trails that have been lost.
some wooden features have simply been lost to wear and tear over time and have not been replaced (nothing to do with current nsmba though really).
some spots got good due to eroision, but then they go past the good point to where they have to be replaced or re-routed. intersting side note, personally i feel erosion can be a positive force in forming a trail. this is very much a double edged sword though as often these section are on intermediate trails and as they become more eroded or challenging then the majority of riders (who have often helped create the erosion) will now braid that section and look for something easier. i can think of a few spots on fromme.
specfically though i can think of a few spots on tnt that were those crux type moves that required a high level of tech riding skills to be able to ride smoothly without getting hung up. had they gotten that way through some erosion? yes? but were they out of context with the rest of the trail? no.
i think we should be able to develop or maintain a balance between the fixing/paving and keeping some of the challenging sections.
We don't know what our limits are, so to start something with the idea of being limited actually ends up limiting us.
Ellen Langer