Very nice, but I can't seem to be able to install it?
Is it possible for you to post on the chrome store?
1. Download the .CRX file
2. Open the folder where the file was downloaded.
3. Open Google Chrome. Type in chrome://extensions/ in the URL.
4. In the Extensions page, ensure that Developer Mode is checked.
5. From the folder, drag and drop the crx file to Chrome.
6. A notification would appear that HN: WIH Search By Tags has been added.
7. Enjoy.