Ask HN: Is there an issue tracker with ranking FORMULA support?

The number of entries in our issue tracker is growing. Doesn't sound too unusual. I want to sort the entries by a custom formula. For example, each entry could have an EXPOSURE field [0.0-1.0] that records what fraction of the user base is exposed to the issue. For example, a landing-page related change would be 1.0, while a deep page in the docs could be 0.001.

Then there could be some kind of an IMPORTANCE field [1-1000] with fixed values like nice-to-have is 1 and an issue blocking you from taking an important action could be 1000.

In the end, we could have a calculated value field like:

VALUE = EXPOSURE * IMPORTANCE

It should be possible to sort entries by VALUE.

Is there any similar solution out there?