from Hacker News

How many users does GitHub have right now? 15.82M and counting

by aaggarwal on 11/12/15, 8:27 PM with 3 comments

• by minimaxir on 11/12/15, 8:48 PM

  > Note: The total accounts would include the deactivated or deleted accounts as well. So, it may not truly represent the number of active Github users.

  Understatement of the century.

  Counting on user IDs is an especially bad way of calculating users. I just used BigQuery to check the number of unique users in all of 2014 and there are only 3 million unique accounts who actually did something.