Using TweetFeed is a good idea or not? Got an error :(

What is Tweetfeed and why does it add value to Twitter?

Tweetfeed is one of the newer applications that allows people to create customized search term feeds, and track those topics in real time. What makes it stand out from Twitter's native topic search engine, in addition to presentation options, are the search operators. What are some potential applications for Tweetfeed?

1. Presentation Augmentation. "Twitter walls," which have become especially common at social media conferences, can be customized with conference colors and brands.
2. Comparative Models. The examples, Tweetfeed tracked Norah Jones and Britney Spears in a single feed.
3. Sharing Content. Sharing a link is easy. The "Share This" feature publishes the feed link with your account name and the name of the feed.
4. Social Media Monitoring. You create a custom search on your name and/or your company and add it to your bookmark service. Like every other tracking application, this is probably the most common usage.
5. Information Sourcing. You can track topics to help you identify people with similar interests or stay up-to-date on content being sourced and linked to by people on Twitter.

Many people talked about Tweetfeed everywhere. Some of them on blogs and forums said that Tweetfeed is awesome, add value to Twitter, pretty powerful link, etc... So, we believe and agreed that TweetFeed is good and so famous. Therefore, someday we want to register to TweetFeed to user their service, but once registered we can not logged into the site. :(( So that we decided to give/send a feedback to TweetFeed by clicking the feedback button on the right of the page, but oh noooo.... a mistake happen (again) :oups: What's wrong with TweetFeed??? Here is the screenshot taken when we click their feedback button below : Click here or the image to enlarge. Because we can't give a feedback to them then we sent a message to their support via email to report the problems that we got - but, we didn't get any response what can we do to short this things out, until now. But we will keep sending email to them about this issue to get fixed... :((