If you have any more questions, please raise an issue regarding the same on GitHub and I’ll answer as honest and quickly as possible :)
What identifiable information is stored about me?
Your username/nickname and your email address is stored along with your user information, and of course. You won't even get any marketing emails, feature updates, newsletters, notification emails, nothing.
How is this all free? There must be a catch!
Absolutely no catch to this freebie. This project is just my way of giving back to the community that I've learned so much from. If you'd like to show your appreciation however, you can follow me on my social media and let me know how much it helped you, or donate to help pay the cloud bills, or if you are a fellow developer, you can head to GitHub and contribute to the code by raising a PR.