Feature request: more flexibility in alphanumeric consistency check

Hi there,

I have a request for modifying the alphanumeric check in a way that would skip such pseudoinconsistencies:

Alphanumeric Mismatch Source (728X90)
728 × 90

As you can see, there are two things:

— x vs ×
— and surrounding spaces.

Could it be accomodated for?