This email has been sitting in my inbox for ages and I thought it was very kind of this reader to share his story. Sorry Steve for taking so long on this.
A brief update on my nails is that they are waxing and waning like the tide but not from my biting, only the clippers. My intentions to grow them back towards the knuckle seem to not be working or taking a real long time but we shall see. I will admit, I have given up on my right pointer finger and bite the hell out of that one to make sure I do not abuse the other ones. My right thumb nail is incredibly sharp and picking my nose with my pinkys sometimes gives me a bloody nose.