An engineer on the Android Security Team objects to people claiming they've "rooted the Nexus S" by installing a custom ROM on it when all they've done is taken advantage of a feature named "fastboot_oem_unlock" which allows you to install a custom ROM.

Actually "fastboot oem unlock" is the command you type into your computer to unlock the phone. "unlock" is the feature name :)

Engadget Commenter: OMG! You easily installed a new OS on your unlocked Nexus S?? Android security suxorz!

Android Dev: OMG! You easily installed a new OS on your Dell desktop?! Windows Security must suck!

given the lengths microsoft work with hardware manufacturers and computer assemblers such as Dell, being able to install anything and have the drivers working is indeed a breach of microsoft market security :)

The irony being that Dell laptops made even this year won't accept clean Windows 7 (well, it will, but the Display won't work correctly and the Wifi didn't work until I went and downloaded them from Dell which was a challenge considering I didn't have ethernet. Luckily, my Droid 1 can tether, thanks to a custom rom. What a coincidence.

Of course the Ubuntu live disc worked fine and offered to install a better display and wifi driver for me automatically when I had wifi or an internet connection next.

Well, he was more directly annoyed by commenters then more or less claiming "Android is easily rooted; ergo Android's security is bad; ergo (by implication) you shouldn't use it" - a bit more there than pure semantics.