Between the “Colbert bump,” Ashton Kutcher out-tweeting CNN, and Oprah’s toppling of Twitterdom last week, it looks like Vanno voters finally have twit fatigue.

Forget the February love affair with the cool, elite tech trend that went mainstream faster than cell phones. (Does anyone remember phone booths?) Vanno users were smitten with Twitter’s being used to raise money for a safe drinking water charity, and they cheered the chatter about the company’s political activism and use as a customer service tool. “Amazing,” wrote one Vanno voter about the teaming of Salesforce.com and Twitter to help make customer service smoother for Salesforce software, a service actually paid for by the venture capitalists waiting for Twitter to take off.

That love didn’t last. After tiptoeing into Vanno’s top 1,000, Twitter’s image took a hit when talk turned to money. Twitter co-founder Biz Stone told Stephen Colbert last week that they still don’t have a business model for their venture, but Vanno readers could smell the difference between last week’s media buzz and an actual marketing blitz. As they tried to build up enough critical mass to make Twitter profitable in some way, they seem to have alienated at least some of their former fans. “I can say ‘who cares’ in a lot less than 140 characters,” commented nicemarmot, and FlyFisherGirl wrote, “I am so tired of Twitter.”

Twitter co-founder Evan Williams, who helped Oprah with her inaugural tweet, brazenly called the technology “the democratization of media.” But does it really empower the people? Or is it just letting them stroke celebrity egos and send mass text messages to friends while the company figures out which tweet of the cash cow they can milk money from?