If I manage to stay alive long enough to get my melee skill up to 100, I’ll be danged if I’m going to agree with letting somebody cripple that because they think that it’s ‘game breaking’ or ‘silly’ - I earned it so keep your grubby mitts off of it.
C:DDA is a roguelike, and roguelikes generally center around the hero gradually becoming a total combat monster like that. It’s expected, and it’s fun.
If you don’t like your character becoming a zombie-smashing warrior, by all means turn off skill advancement on your combat skills. I don’t mind if you get eaten, and it makes everybody happy: you can play as a walking zombie snack, and I’ll be a kungfu powerhouse.
Different play styles are options. If you don’t like one of the options, then don’t do it. But please, don’t campaign to take that option away from everybody else just because you don’t care for it.