I set up an automated queue for access to the developer queue. It looks at your workshop activity for GMod and HLAlyx and gives you a score. The person with the highest score gets access.
We want to rate limit how quickly people get access. This development process is fun for us right now - and I want to keep it that way. If 10k people get access tomorrow we're going to be swamped with bug reports and feature requests. It's going to quickly turn it into work.
This isn't a perfect way to do it. Everyone has an idea for a better way, which usually leads to them getting access straight away.