Original Ragnaros world first kill was 5 months after release

Nothing hits you with fire damage on Rag unless you stand in the knockback, eat lots and lots of lava damage, or let Sons smack you in the face. If you’re dying on Rag from lack of FR, that’s a PEBKAC error.

https://classic.warcraftlogs.com/reports/fTKMX1Phbz4VqgcQ#fight=43&type=damage-done&source=39

He only hit Golemagg you illiterate moron…

Indeed.