Is an Activity Stream Views-display restricted to using only Default Input Format for Display of Node/Fields?

I have an Activity Stream (Twitter) Block which displays hyperlinks within tweets correctly. However, when I make a view of the stream and create a block-display, the links disappear. When I change my default Input Format to be permissive to links this problem goes away. This absolutely cannot be a daily solution however, because the client insists that the default format forbid link-based XSS. What I would like to do is set the Input Format within the main view display to using something other than the default. Am I misunderstanding the problem here? What I have done: I have changed the default formats for the Activity Stream content type...no effect.

I note that http://drupal.org/node/582918 has a patch that allows Admin to set the target Format for new items...neat, except that the CVS file protocol on that only works on sites where that kind of version control is in place? Do I have to study how to decode that syntax or is there now a more ready solution?