Honestly, depends on your use-case. Spacebadgers generates minified and brotli-compressed SVG code instead of images, so we can run on the edge with very little performance overhead. Due to the reduced bandwidth, we can also serve badges with much shorter cache-times, so they update more frequently. I suppose if you're happy with shields.io, there's no good reason to switch, but for people who are actively looking for a faster alternative, or want to get some fresh badges for a new project, Spacebadgers is a great alternative.
Sure, but I don't see how competing services are harmful in any way. As I said in other comments, if you're happy with shields.io, go ahead and use it. I'm not trying to deter anyone from using service A or service B, especially because I'm not making any money from this. Spacebadgers is just another choice, one that might be better or worse for your specific use-case.
Good one :P I really tried not to over-emphasize the usage of Rust in the project. It is indeed quite fast, but mostly because of the focus on minified SVG, edge-computing and WebAssembly.
