"Moral: RTFM." and be careful with your "'what does this button do?' activities"
while the purpose of the article is great for both users of old(er) devices and a great bit of PR for CyanogenMod, apart from the very misleading title, it struck me as potentially dangerous for novice users who don't quite know what their doing due to a lack of warnings in a couple of places.
The two biggies that could lead to a few angry readers with bricked devices are:
"The first time I tried this the Zip wouldn’t install. So I downloaded the same Zip again and it worked. Go figure."
- this is ROM flashing 101, always check your MD5 hashes before attempting to flash a zip! (If your using the ROM Manager, it does this for you automatically) Downloads cant sometimes get corrupt, your phone is sensitive to these things and a dodgy zip flashed to the wrong place can seriously damage your phone.
"I tried bumping the San Fran’s 600MHz chip to the maximum indicated 806MHz and everything froze"
- Just because the option is there, doesn't mean your device supports it. How much you can and cant under/over-clock your cpu is down to your specific cpu and depends on various things like build quality, device age, mood of QA guy testing it...
A bit of trial and error is needed when doing this, and you should always bump up to the max value not start at the top and work down.