Why signing up and logging in is required to work with collections?

[TheBlueSky]

While searching for an alternative to the tools that went commercial or has no consideration to privacy, I stumbled open Firecamp.

At first glance, it seemed promising. So, I installed it, only to find out that its usefulness also relies on signing up.

What is the reason behind this decision? All I am looking for is a tool that I can work with on my machine without the limitation of the number of collections, requests, environments, etc., or the requirement to sign up, for no obvious useful purpose, for me.