This text had been received from Pavel Lozhkin <Pavel_Lozhkin__AT__deltabank.ru>
The policy of blacklisting into the zone became more soft, but the domains/netblocks which do not have the valid mail contact addresses being defined in RFC as a must, will be included in the zone immediately (see www.rfc-ignorant.org to find more details about the problem), sometimes without any attempts to contact upstream about the issue. If some network were unresponsible for spam complaint for long time, and spam keeps arriving, these networks would be included into the zone, despite of a netmask of the network. The good example of the behaviour is Korea (.kr domains).
Also network can be blacklisted into the zone immedately if anyone of technical or administrative staff either, who is responsible for mail policty of the network, tells me that spam is legal and so on.
The site is maintained by Andrey V. Stolyarov (crocodil_at_croco.net)