Ok, I have to admit the article snippet had my sniffer sniffing. There seem to be too many digits of precision in the torque test numbers for anyone but an extremely expensive shop, and how did they consistently rust the bolts, even with a salt fog cabinet, and we all have one of those out back, right?
I am sure that the ATF/acetone mix works, but I wondered where that quoted text originally came from. So, I went poking around. The snippet would appear to be widespread, as it is quoted all over the place, but no actual source, and always the exact same chunk of text; nobody has a longer version. After an interesting walk through various search results, a search of machinistsworkshop.net, a (the?) magazine, turns up one result for ATF, and two unrelated items for rust. The earliest quotes of this seem to be 2012, so it wouldn't appear to be that old.
The snippet seems so tantalizingly detailed, as if grounded in fact. "Steve from Godwin-Singer".
Godwin-Singer is a machine shop in Florida, and a Steve Trimm is a co-owner.
Perhaps someone with better "Google-Fu" can find the original source. I couldn't.
If it was a prank post, someone must be laughing pretty hard...
All the best,
Peter