I built a small tool called cs2rankconverter.com — punch in your CS2 Premier rating, get the equivalent CSGO rank. It exists because Valve replaced the familiar Silver-to-Global rank system with a 1,000–35,000 number scale and never bothered to publish a mapping. Players who quit during CSGO and came back during CS2 have no clue what their new number means. Should be simple right? Take Premier's rating, look up the matching CSGO rank, return it. Two days of work, ship it, done. Except every existing converter I checked gave a different answer. Dexerto says 18,000 is "DMG-LEM range." Esportstales says 18,000 is mid-LEM. Scope.gg's 2.5M-player analysis maps it to high LE. Leetify's data implies upper-LEM. None of them are wrong. They're all using legitimate methods that produce different results from the same underlying reality. This is a fun little case study in why "convert X to Y" problems get harder the moment you actually look at the data.…