Gregory's ServerI think much of the "complexity" comes from the frustration of having too many choices and a strong (often misguided) notion that you need to
1) find an instance
2) in a subject space you're interested in
3) that has open signups
1 is easy with simple search skills
2 is "what if I'm interested in more than one thing? Can I post there or do I need...?" difficult. This is a problematic presupposition that I see ALL the time.
3 closes the door when somebody's ready to join.
JMO