Hello,
We will write down the suggestion. It will have to be prioritized with other work. Unfortunately this wouldn't be an easy update since it would require some fairly large infrastructure changes to our ScreenTipService to delay closing of the screen tips to see if the mouse ends up over one at the end of a timed delay. And then tracking the mouse to see when it exits the screen tip bounds to kick off yet another timer for checking to see if still has left the bounds. All of that would add a lot more complexity to screen tips for such a relatively small end user feature.