Twitter does not require a Referer header to return user-generated content ("tweets").
https://news.ycombinator.com/item?id=27056734
Sending a Referer header does not improve [your] experience. It is the opposite for me. I cannot tolerate Twitter's Javascript, I do not use a graphical browser. I find it annoying when people submit Twitter status messages to HN.
I have a script that reformats the JSON into a simple HTML page with no Javascript. This improves the experience for me:
https://news.ycombinator.com/item?id=27499784