Just no.

'K' denotes 1000, or 10^3.

Always has, always will. Every standards organization on the planet that has any bearing on the matter is unanimous on this point. The fact that 2^10 is very near the value 10^3 is irrelevant. It has been misused for convenience, but has never been correct.

If you want a quick and easy indicator for 1024 or 2^10, you can use 'Ki'.

Stop misusing 'K' before you kill again.