Thanks for posting and bringing more attention to SteemConnect. It's a very important tool for the development of 3rd party applications on top of the steem blockchain. I am in the process of learning how to use it and integrate into a new application I'm working on right now.

I wanted to note a few things. https://steemconnect.com is for V1 of SteemConnect which I don't believe is supported anymore.

For the latest version you can go to https://v2.steemconnect.com. Additionally if you want to manage your account and applications you can go to https://v2.steemconnect.com/dashboard

Also I wanted to add that Utopian.io is another great app using SteemConnect!