It's still relevant today, unfortunately, in some industries where upgrading is prohibitively expensive. E.g., you'd need to buy a new POS system, or paid mill

It's still relevant today, unfortunately, in some industries where upgrading is prohibitively expensive. E.g., you'd need to buy a new POS system, or paid millions to have custom-made medical software recertified (or re-written) to work on a newer browser, etc.. It's much rarer -- most places have bitten the bullet by now -- but I still see it (and IE7 is certainly still around).