When the foundation co-founder & CEO of the development LLC says something – and the same thing, repeatedly, when the topic comes up – that's not as weak as an

When the foundation co-founder & CEO of the development LLC says something – and the same thing, repeatedly, when the topic comes up – that's not as weak as an 'unofficial opinion'. Of course, it could be reversed, and if you find any more-recent official welcomes from Signal for third-party clients to use its servers, I'd love references.