devs are inactive ? I did ask something 2 days ago on Discord group and nobody answer 
Dev team too busy with everything on making Sirius legitimate bussines. We shooting blind here, don't know what will actually happen soon. Hopefully everything will be okay.
information about the legal registration and filed application for listing on the exchange cryptopia, is this not enough information for you?
I think that the devs give us only the necessary information, briefly and clearly
Yes, the news on exchange listing and foundation shows there is work going on behind the scenes, but an occasional post here would only take 5 minutes, and it gives people confidence, and that helps grow the community. It's not rocket science, cloning an existing coin tech is more about building a community than anything else.