Comment by dylan604

not really sure what this means.

most people cannot detect differences in kerning, and must be extreme adjustments to get people to notice. even then, the words would need to be aligned above/below each other for people to see the differences. however, a computer program analyzing the size of a bounding box would notice single pixel differences. so randomly adjusting the kearning per word by pixels between each letter would go unnoticed by the vast majority of readers, but could play absolute havoc with algos trying to decipher possible word combos based on bounding box size.