NameBlock was created to solve a problem that has been bedeviling businesses with an online presence since the domain name system was born - that of bad actors registering confusingly similar domains in an effort to siphon traffic away from legitimate sites and send unwary consumers to bogus sites where a variety of scams, malware and other assorted ills are often waiting for them. For decades that has resulted in an endless game of whack-a-mole in which a new threat pops up as soon as an old one is shut down. That led Larsen to wonder "what if there was a way to prevent domains whose only purpose is to deceive from being registered in the first place?" In NameBlock he and his teammates may have found a way to turn that seemingly impossible dream into a reality.
NameBlock Tackles Domain Name Abuse With an Innovative New Approach to an Age Old Problem
From what I have read so far at NP, you can basically pay to block anything.