To OP - I think the resume is a clever format, and riding a language's popularity is a great way of putting yourself out there, especially as a junior.
To others, the "Traits" section -- how much impact does this really matter to the hiring managers? You're hired for what you know, but you're fired for who you are. Is it worth it to expand on these "traits", or is it a fluff area that can be replaced with something more meaningful?
I might use a different analogy -- it might be more like using a bike versus a motorcycle. You can run a delivery business on a bike, but you'd be able to do it with much less tinkering, if you were using a motorcycle.
If you're using rails, explore its libraries. Devise is an excellent gem for user auth/login/registration. On Rails, you should move fast to build MVP, and test the audience.
I'll bite. My website is tingls.com. It's for ASMR enthusiasts.
And as far as your question goes, I think it could take off if you're reputed to be an authority/personality on the topic of UI/UX. Maybe do some analysis on the big-name websites' side projects, like Facebook Groups, Google Groups, instagram web app, etc.