That's exactly the point.
You don't want to reveal your URL because you make money off of it but you said it was OK to out competitors' URL's.
but usually placing competitors urls becomes an issue when they are doing blackhat. if not they won't be in trouble.
im only not placing mine since i dont want yt to someday know that I'm a member of some blackhat forums.
imagine u become some famous guy like a music artist. then people start digging for your roots.
then some people find that u r a member of bhw especially a place that has smms that can sell you artifical views.
that will lead to controversy and people saying that "your growth to fame wasn't organic you were botting etc"
look at how triggered American kids all say that t series is botting when they fail to realize Indians population and a sudden revolution in india with internet access to even the poor.
this caused a massive spike.
despite no evidence people still claim they bot.
but pewdiepie nah and other they will never say they bot even if they did.
they are only triggered coz they don't like Indians and that Indian channel has beaten all channels.
this is just an example, i dont want my big channels to be associated with me being in some blackhat forum especially when people start digging my roots.
i dont want to be part of that controversy