Twitter listened.

How could Twitter shut down his blog?

From a purely technical perspective they could using platform.twitter.com/widgets.js that the blog includes.

I sincerely doubt they would use their external JS to take down competitors websites. They would instantly lose any trust across the whole internet.

Of course it would be a completely stupid thing for Twitter to do (unless they get hacked). Just saying that technically it is possible.

A completely stupid thing for Twitter to do, like writing a post about their 12 hours of downtime ending in rollback by

1. starting the post with 5 paragraphs and a list of all the virtues of Twitter's engineering

2. spin the fact that, after a simple DB screw-up in production it took them about 6 hours to decide to just rollback from a backup

3. end the "postmortem" (which is, by the way, completely devoid of apology) by trying to hire

all the while talking about how working at Twitter is like building a rocket mid-flight (so, just like every other company)?

http://engineering.twitter.com/2010/07/twitter-performance-u...

I don't think that would result in an internal server error.

With some effort it could result in an internal server error. With no effort it could result in an "Internal Server Error" being printed.

True. I hadn't considered that.

Karma police.

You only have to put up with it for a few more days. Once my antidepressants kick in I'll go back to one comment a week.