If SP needs revamping and more dinamic features we can all agree, i think. But let's not say the problem is lack of possibility to add technical routes, because all instruments are there to write them.
Separating technical climbing and hiking would be suicidal for the community, braking it up into groups.
As the thread goes on, i see the point people asking for change (partial and optional wiki) are making, and if i am not mistaken, in the end it all comes down to users not committed enough to the high standards and updating necessities of pages.
A partial, yet useful solution to this problem might be a new user tutorial of SP explaining clearly to new users the fact that contributing is a commitment and not just adding random pics, that management of the pages is required and that if unable to maintain pages, they can be put up for adoption.
Everyone will keep doing what they want, as the world goes, but clearly stating the communities expectations might help new users understand to what extent they wish to contribute.