Yhea, just because it isn't mentioned, doesn't mean the good old rule of you having to say, in some fashion, that you have claimed the hill, is kind of in effect if you don't like people just insta-claiming them.

*Whips out a Troll annihilator to annihilate GW, sending him underwater on the other side of the world, then kicks DBT off the hill hard enough that he joins GW a second later.*

...Need I explain it further?

MY HILL!!!