Speaking for USA: The top 3 major ISP’s all have a 40mbps limit on upload speeds. Even if you have unlimited data, the constant sharing can bog down your internet, so yes, it fits make sense to limit upload speed.

But 50kbps that OP said is pretty low unless they have low speeds from their ISP.

You can use it even if you only have a few. Seems like a nice visual tool to keep track of what you have. And makes a good reminder to cancel one of you haven’t used it in a while.

They didn’t even verify the email, so you can use any BS email you want.

There is a difference between “free & open source” and “free because you don’t pay with money”.

The first means it can be peer reviewed by anyone to make sure they aren’t doing anything shady.