Feature Request: and/or option for every filter criterion

[ileo]

Hi,
I subscribe to some news services with lots of news items per day where I'm only interested in few. For this I am using Smart Folders with the criteria that every item has to have certain words in the title or certain authors.
It would be great if this feature was more powerful, I especially miss to be able to select
- which feed an news item is from
- for every criterion if all selected items need to match it or not (and / and not) or if only single ones can match (or)
Thanks!
Leonard

[barkmaker]

Would be really nice to be able to filter ALL feeds based on certain words. For example, if one were tired of reading about Egypt, they could add a filter for all RSS feeds by the word Egypt and then any article title or subject that included that word, would be excluded from the feed.