Insertion point should remain solid when using arrows to move through text.
If you have text and you use the arrows to move through characters, the insertion point continues to blink. This isn't how it works by default anywhere else in OSX, and means that you either count key presses and characters to keep track of where it is, or you wait for it to flash to see where you currently are.
This slows down workflow and breaks user expectations by deviating from OS behavior.
Hey Jonothan Bowman,
You are having the same issue as us over on another Bug Title. Come on over and follow that one with us. Let's all band together and make some noise on this time wasting issue.