Grooming is an aesthetic thing. Unless you work a job with particular requirements, nobody can force you to do anything. I wasn't directing what I said at anyone in particular. However, if as a dude, you decide to make a fashion statement in public of say, a wifebeater with giant pits and scraggle forest on the chest, it paints you in a certain demographic. Same way as if a MTF cakes on a ton of makeup and an age inappropriate miniskirt. You are welcome to portray yourself however you wish, but do so with the knowledge of what it means.
Not all men are hairy. Not all gay men like hairy men. Not all women like hairy men. Not all men let their hairiness flourish, and many do take steps against it. What I am saying as a broad statement on the topic is not to feel like hairiness is a requirement or a definition of masculinity. I sure wish somebody would have impressed on me that my beard would have looked a LOT better maintained, and that my hair would have been healthier and way prettier had I taken it in for trims, too.
Plus, everyone really needs to trim their pubes. Oh my god.
Edit: This is not me railing against body hair. I'm actually hot for James now because armpit hair is actually an important part of arousal - keeps the scent of the body. When clean, it's incredibly erotic to notice the scent of your partner. And his leg hair looks soft and cozy. Don't tell my girlfriend.