The article has been edited without notice of modification. I don't know if a public reversion history is kept or if any of the caching engines picked up the v

The article has been edited without notice of modification. I don't know if a public reversion history is kept or if any of the caching engines picked up the version that I saw. First instincts of business is often to obfuscate, bury, and ignore. It's not completely unexpected or unusual. I've actually noticed quite a bit of text on HN that gets modified over time, often with no public revision history or even notice of modification. Bug? Feature? Oversight? Not sure.