I don't know exactly why but I really dislike pets in Nethack. Funny enough, I love amassing a small party of followers in Brogue and I quite like the pets in WazHack but in Nethack they just get in my way and cramp my style. When I hear people's strategies for winning, they heavily feature the pet and so I'm wondering how many people are successful (not necessarily winning but playing a respectable game) without the pet.
Cheers.