I think it comes from the exhortation to read the manual: "RTFM!". This has been around in technical circles for over 40 years: https://en.wikipedia.org/wiki/RT

I think it comes from the exhortation to read the manual: "RTFM!". This has been around in technical circles for over 40 years: https://en.wikipedia.org/wiki/RTFM https://en.wikipedia.org/wiki/RTFM