I've noticed it after releasing the screencast. Maybe I'll consider renaming but looking at their license you cannot use a similar name only if you use their lib, and I don't
I think most anyone on HN associates “scrapy” with the python library that performs a similar-ish function. I would highly suggest renaming, for many reasons, but other than the reason above, also googleability
Very interesting approach. A static screenshot is nice if you are just trying to get a quick look at the data, but in your own example it's not useful as you couldn't click on individual items such as the top 5 items on hacker news.