In addition to others people’s comments- is English their first language?, even if it is -are they neurodivergent? also what position are you correcting from- Genuine care and a willingness to help or from a position of power and superiority?

What if you’re doing it just because it’s a really irritating mistake (think, someone trying to sound “polite/formal” but is in fact the incorrect use of the word?! (Some might say the corrector is just being fussy)