[_gtly]

People using 'further' instead of 'farther' (used for distance) used to get me upset, but people mistake them so often that I realized I was getting upset for no good reason. I know what they meant even if they were ignorant of the grammar. I agree that in an academic paper you don't want to see grammar mistakes, but in many other contexts if you understand what is meant, it's no use getting bent out of shape.