To answer this in the meantime:
So, basically, everyone can use this to do what best suits their needs? No dependance on what the other users are doing, and not limited by what the developers' preferences are?
Yes. The only dependency is: there need to be other users available, otherwise no trades can be made of course.
We do not have any preferences and try to remain agnostic when it comes to valuesystems. Some offer innovation, some don't. Who are we to decide which ones you can use or not? We want to build tools for people to exchange value. By providing the system open source and expandable via modules, devs can hook up any exchange or coin they like.