Over the past one and a half years, Stack Overflow has lost around 50% of its traffic. This decline is similarly reflected in site usage, with approximately a 50% decrease in the number of questions and answers, as well as the number of votes these posts receive.
The charts below show the usage represented by a moving average of 49 days.
What happened?
https://en.m.wikipedia.org/wiki/Chinese_punctuation
(This is a lesson in history, so I’ll let the discerning reader to decide for themselves whether there is sarcasm contained in it)