Turn off new mask path point creation by default.
When I'm clicking around a mask, 99% of the time I'm trying to interact with already-existing path points. This winds up disproportionately resulting in the accidental creation of points that I have a hard time getting rid of (or often don't even notice until it's too late to delete them).
Please require the creation of new mask points to involve a modifier keypress.
Also, requiring a modifier key for the "rotate" option would help, too. That, or moving the mouseover area further away from the path. It's so close to existing points that attempting to click on them often results in accidentally rotating the mask.
Pierre Louis Beranek commented
Yes! It's EXTREMELY annoying when mask paths are rotated by accident!