Hi @happybeing, it’s a pleasure to follow this community.
Thanks for both your comments and questions.
You can build stuff using LOV, and there are many services using LOV as backend. Of course, depending on your use case, we’ll recommend using either the API or the dump; not the SPARQL endpoint. Some of the applications are listed in this page under “Application Ecosytem”
Regarding sustainability, LOV has been around for almost 8 years. Regarding hosting, LOV was hosted during 6 years by the Open Knowledge Foundation.
Since July 2018, LOV is hosted by the Ontology Engineering Group at UPM. Four years after its launch, and one year after the end of its initial framework project, LOV is supported by a small team of curators and developers.
Our goal is to have the service available again for many years, as long as we have the support of institutions like OKF or UPM.
Thanks!