Awesome tool @timcliff - thanks for sharing this! This is especially useful for explaining the concept of delegating SP to newbies and appreciating the many helpful Steemit APIs that are being developed by the community.
I am in fact working on my own Steemit tool - Steemit Live - with several Steemians at the moment. Just created a Discord server to discuss and plan our project and have started to spread the word in my latest posts. Thanks for inspiring us @timcliff!