Yeah, my concern with validation started with simple RDF validation on TTL-files, but was planning to support simple RDF validation on other triple-files such as RDF/XML, N3, JSON-LD, etc. But this is a much bigger issue, and needs a broader discussion, which I’m glad we’re having now.
FYI: I’ve pushed my work on this to feature/simple-validation on NSS; it’s not much, but could be continued at some later point when we know more how we want to handle this.
@JornWildt You already know of this thread, but wanted to link Illegal content - copyrighted material and so on as parts of what you mention relates to it.