Version 1 of #1836

There should be a feature similar to the ‘single comment thread’ feature Reddit has, where you start with some deeply nested child idea and render all of its deeply nested parents above it:

    G
   /|\
 P1 P2 P3
   \|/
    I

Cycling through revisions on the parent level might hide the idea but that in itself isn’t a big deal: the user can just refresh the page anytime they quickly want to find their way back to the idea.

Every non-top-level idea should have a link to a separate page with the single comment thread.

This feature would also allow me to remove the buggy ‘context’ feature.