I reference the formula tooltips all the time:
I would like to request the following:
1) Please keep them open indefinitely as long as your mouse stays hovered over the formula icon. Right now they close after 5 seconds.
2) Please proof them and keep them updated. They often contain errors and I end up wasting a lot of valuable time troubleshooting them. This CountConditional pop-up is a good example. It shows single quotes around the strings when they require double quotes, and it references array(), which is not a valid formula.