When I started ReadMe, I tried to buy the domain developerhub.io to use as name... I was inspired by StatusPage.io. But alas, I couldn't get it and went with ReadMe.io instead :) What do you see as the main differentiators of DH compared to ReadMe? (Zaid, feel free to contact me! My email is in my profile)
I am quite unsure which one is harder for SEO though, ReadMe or DeveloperHub hah.
Our differentiator: We are all about user experience and the customers. Our typical response time to support requests is 3 minutes. Bugs are resolved in one day, and feature requests are evaluated in less than a week.
I'll give you an e-mail soon!