I love "Hacker News", but sometimes there are items from some sites that I typically like to avoid - like Techcrunch. HN doesn't have a filter in place yet, so I created my own (kind of).

Add the slugs of the sites you want to filter (for eg. 'techcrunch' for TechCrunch.com) and those items will be removed from the page as and when they appear. I created the filter to avoid going crazy with a Techmeme type echo chamber for the A-list bloggers. If I don't see their posts again and again, I'll keep my sanity longer. Few things to note:

- Since this is a Userscript, more items will not be fetched to replace ones that are removed. So the filter is only a cosmetic change, not a functional one. The item removal is a post-page load-process
- The list can be as long as you want, but I can't vouch for performance drops if there are too many sites. Also, too many sites being filtered might leave your "Hacker News" pages relatively blank
- There is no way to get the items back without reloading (after disabling the script). I might put it in the future though