This forester was conducting a survey for us one year, and showed us that we have a specimen of a tree species that's expected to go onto the endangered list in the future. With a wink, he warned us that if we've got that tree there when it goes on the list, we'll be forbidden from doing much of anything with our land in the future - the implication being that we should dispose of it while we've still got the chance.
The ESA can impose significant costs even on us little folk. And the way the Act is constructed provides perverse incentives, giving us motivation to do the opposite of what's intended.
(we left the tree, but others may not have the same flexibility to make that sacrifice)