http://maldomapyy5d5wn7l36mkragw3nk2fgab6tycbjlpsruch7kdninhhid.onion
Renting IP addresses costs money, but generating hidden services on Tor or I2P does not. An adversary could spawn as many addresses as they like to pretend to be a unique node, thereby increasing their chances of being included in a large portion of the user's peer list.