He is worried about hardware cause there are places where you can buy a rackspace server and just have it housed some place and pay rent to them for the housing/bandwidth. These places have a high input/output bandwidth to accompidate just about everything.
This site is just like that as well as at least 3 others i know of. The owner of the site also owns the server, but they have it housed in a rack space. Basically what kmote said above in #3.
So yeah worrying about hardware is needed, when you plan on buying a rack space server to get housed. As you will own the hardware and you will know about it. Just cause you wont have physical access to it at all times, doesnt mean that you never will. Even people who own rack space, if they are close enough, can go there and connect directly to their server in the rack.
This site is just like that as well as at least 3 others i know of. The owner of the site also owns the server, but they have it housed in a rack space. Basically what kmote said above in #3.
So yeah worrying about hardware is needed, when you plan on buying a rack space server to get housed. As you will own the hardware and you will know about it. Just cause you wont have physical access to it at all times, doesnt mean that you never will. Even people who own rack space, if they are close enough, can go there and connect directly to their server in the rack.