No, I wasn't hoping for the least time in beta. Beta is always a minimum of 90 days, and then more if required.
I was hoping to break the least time to get to beta. That mean't getting through the Area51 Definition and Commitment phases the fastest.
As it turns out, we took 20 days in Definition and 31 days in Commitment for a total of 51 days. Definition was hampered by needing to finish getting the 40 questions with 10 votes each. Commitment was hampered by needing to finish getting the 100 committers with 200+ rep on Stack Exchange sites.
The record of fastest proposal to beta launch time was Mathematica at 32 days, so our 51 days did not break that.
Now, re your question: What is 9.5% fulfilled commitment.
Everyone who committed pledged to participate in the beta and ask or answer at least 10 questions during the beta.
We had 263 committers when we went to beta. So far, 9.5% or 25 of them have fulfilled the commitment and have asked or answered their 10 questions.
The goal, of course, is that 100% of people who committed fulfill their commitment.
However using stats from Area 51 and from a sample of our committers, I estimate that after the 30 days we've been in beta:
- 25 committers have fulfulled commitment (asked/answered at least 10 questions)
- 73 committers have asked/answered from 1 to 9 questions
- 116 committers have signed up to the beta but have not asked/answered any questions
- 49 committers have not even signed up to the beta.
I'm actually very disappointed with those 116 + 49 committers.