This was the the closing announcement from the previous incarnation of Arduino:
The future of Arduino on Stack Exchange
After a week and a half in private beta, Arduino Stack Exchange has attracted some excellent questions, with great answers written by helpful, knowledgeable Arduino experts. Kudos!
What you're doing is great... But this isn't the right site for it, not right now. The volume of questions here is very low; more importantly, this is clearly becoming an Arduino-focused electronics site - and we already have an excellent site for electronics and electrical engineering professionals, students, and enthusiasts with a big focus on Arduino.
Therefore, we plan to close this site on April 25, 2013.
This is our screw-up, not yours. When we were debating whether to send this site into beta, I voiced some concern that there was a lot of overlap in the definition. After some debate internally, we decided to go ahead with the launch, thinking there would be enough interest in other Arduino topics to carry the site. We were wrong. However, I still think this site does demonstrate that there is a wealth of knowledge that hasn't necessarily found a place within EE.
Well... It should. There's no reason why y'all shouldn't be asking and answering the same good Arduino-specific questions on EE.SE that you've asked and answered here. Over the years, many different products and platforms have found homes within larger Stack Exchange sites by directing folks to a specific tag and just being active enough to guide them toward asking good, on-topic questions. Indeed, a fair number of Stack Exchange sites came into being after a thriving community developed on an existing site and then later broke off...
Some day, Arduino may follow this same path. Until then, I welcome you to help incubate the Arduino community on Stack Exchange by becoming an active member of Electrical Engineering. I've started a discussion on bolstering the Arduino community on EE.
The community needs to be on point this time around and focus on building a successful community. Moving forward out of private beta will not be a freebie for us.
What can we do differently this time to better our chances at a successful site?