This is possibly a bug, but in general we don't completely test as to what gets enabled/disabled when subscriptions expire. It's quite rare that people keep their servers around when subscription expires. But I will test things out when we cut a new release.
As for the license itself, the platform code is not opensource or free software if that is what you are wondering. We contribute to opensource in other ways both financially and with development - https://www.cloudron.io/opensource.html . The license text is an adaptation of various other licenses like GitLab EE, Sourcegraph EE license etc.
I would like Cloudron to be released under a Free Licence. I am sure I am not alone in this.
I feel uneasy about it being non-Free. It feels like the rug could be pulled out from underneath at any moment. It is not that I think that Cloudron might "turn evil", but that pressure could be brought to bear on the maintainers, and in that way infrastructure built on Cloudron could be cancelled.
Is there any hope that Cloudron might be re-releaed under a Free licence?