[b00ty4breakfast]

the word "about" in "about 15 years ago" indicates that the writer is making an estimate because exacting precision wrt the timeframe is immaterial to what is being conveyed. Since 2012 was 14 years ago, "about 15" is close enough.

[avadodin]

This might be the first time one of these statements hasn't made me feel old. 2012 feels like 84 years ago.