Why in the nuclide chart the $Q_{alpha}$-value (the energy released in an alpha decay) is listed even for stable nuclides?

When I was studying some graphs I started comparing data with the nuclide chart of https://nds.iaea.org, and I noticed that even for nuclides that aren’t typically alpha emitters, even for stable nuclides, is listed the energy released in an alpha decay ($Q_{alpha}$). How is this possible, or better why is important to display such information for stable nuclides ?