What's the point in testing on a browser that hasn't been updated in 15 years, even if you bother to set up a VM specifically for it (since every other browser

What's the point in testing on a browser that hasn't been updated in 15 years, even if you bother to set up a VM specifically for it (since every other browser works on all three OSes)? https://en.wikipedia.org/wiki/Safari_(web_browser)#Windows https://en.wikipedia.org/wiki/Safari_(web_browser)#Windows