[markb5]

It's not. There was no correlation at hand here - this was just a coincidence

[joks]

I would think it's an edge case of correlation, but still correlation (100% of the time it has had this error, it was on a leap day, 0% of the time it was not)

[markb5]

It might appear as a correlation due to sampling error, but the two variables have no dependence with each other. There is no correlation with it being February 29 and the bug that was described.

[cyanydeez]

anecdote is the singular of date, a correlate is a coincidence.