I started collecting member numbers for people that signed up for the bikesharing. I was curious about how the numbers clustered and who was fastest at registering when it opened at 6:30am. I thought I’d collect a few to use the German tank problem to approximate the number of signups. Later someone found a way to see a list of all registrants, so I was able to fill in some data, especially to get the most-recent signups.
I’d estimate that Biketown got 500 to 600 signups in the first 12 hours. Keep in mind this is an inference based on blackboxed data, and I could be completely wrong. Read on for more, including how early public figures signed up.