publish some realtime stats from the broker?

How many snowflakes are there registered right now and happy to serve censored users?

Right now there's a big difference between 0 and 1, and it's not easy to figure out which it is.

Knowing this number would help me as a snowflake volunteer decide whether I am needed, and whether to do advocacy at this moment to get other people to be snowflakes.

Knowing this number would help the censored users too, because it would give them a sense of the health of the snowflake population, and also it can help them debug their "it's not working, I wonder if I can narrow down some possible problems" situations.