A while ago, skimming through emacs-orgmode mailing list, I read this message by Stefan Monnier:
I'm on a crusade to eradicate the `intangible' property, which happens to rub me the wrong way because it's implemented at too-low a level (it affects every point movement) which incurs a significant performance penalty (even when not used) and affects a lot of code which then needs to be fixed by binding inhibit-point-motion-hooks (which I'm considering defaulting to t).
Got me wondering about this
inhibit-point-motion-hooks variable. In what particular cases is it used?
Assuming Stefan's statement about "defaulting it to t" isn't motivated by weariness, does it make a difference to change its value globally? What about performance-wise?