While I think the project started off with the best intentions it's become apparent that it has failed. The whole team has left to pursue other projects (ethtree a direct competitor of slipstream). Justin Clay has obviously left too seeing as he hasnt beem on the Mbrs telegram for a long time.
I urge people to DYOR. it's just James Drake open sourcing the project trying to get it done for free. He has clearly shown his incompetence to even complete the most basic of tasks such as finishing a website. Hardly the person you would rely on to create a whole blockchain ecosystem