> You are free to use it yourself.

Idk. That's not how I'm reading it. Someone reading my blog is a user of the blog software. So running the blog and letting people read it would fall under that limitation and therefore would be prohibited.

I understand that's probably not what they tried to write, but wouldn't want to defend that understanding in a courtroom.

> It's still OK to rent a VM from them and use the package manager to install it.

Do you open up port 80 to the world? Because then you are hosting the service that offers users access to substantial features or functionality.

> In any way, it is really confusing, in a way a license should not be.

On that we agree.