Hide links in flagged posts?

AFAIK, the one-click-away “hidden” post content is the most recent post history.

The only ways I can think of doing this are either to:

  1. change the content of the post
  2. add a modified content post to the posts history to use
  3. some kind of “layer” on top of the post

Totally a dubious gut feeling, but maybe the second would be the most doable?