I know it's not the done thing to point out people's spelling mistakes,
That's not quite true (for myself). I'm pretty relaxed on social media, and where it's (a) not critical and (b) highly likely to have been spearchucked to death.
However, there is still a place for good spelling, grammar and punctuation. Your cv, for example. I have and will happily bin any cv with a spelling mistake,. Which I have discovered is a dual purpose filter, if someone thinks I give two shits about anyones spelling. Which I don't.
Then there's always en.wikipedia.org/wiki/Muphry%27s_law