there is no simple reason why to block something on internet. you can block import of some goods or yourself in elevator. but blocking some portion of websites? in world, where you can connect any device capable to broswe web via proxy and deploy squid proxy within minutes on cheap vps?
blocking any content or information source simply can't change or improve anything. please, be so kind and realize it..
Some people refuse to take responsibility for their impulses, parenting and environment-they never really grew up. They wish for all of us to suffer or be denied access to things because of their failings. It is not only a petty and selfish attitude which goes hand in hand with entitlement, but is the noose by which authoritarians and totalitarians strangle open and free populations.