I keep forgetting to ask this question. When was Hank first drawn with these tusks. The past issue is the first time that I remember noticing them.
I'm not sure that they make him look like an even more menacing villain. To me they just make him look like a mutant pig. A big, fat, sad and pathetic looking hog.
Unless that is the point. Hank has devolved from a human to a hog both physically and morally.