'Tweeting' Carefully to Avoid SEC Ire

I saw this headline in the Wall Street Journal:
'Tweeting' Carefully to Avoid SEC Ire
More companies are using blogs and "tweets" to communicate with investors and customers, but risk running afoul of SEC regulations.

I understand the point of the story - but the rule and regulation based approach used by the SEC to protect investors is excessive and largely ineffective.

I assume that Bernie Madoff was not twittering or tweeting - though some of those around him might be singing like birdies right now.