Currently the .uk WHOIS data is what's considered "thick" will full registrant and other details given out by the WHOIS server i.e.
Result of WHOIS query: Domain name: shinycleanhouse.co.uk Registrant: Andrew Other Registrant type: UK Sole Trader Registrant's address: Minerva House Edmund Halley Road Oxford OX4 4DQ United Kingdom Data validation: Registrant contact details validated by Nominet on 10- Dec-2012 Registrar: Efficient Registrar Limited [Tag = EFF] URL: http://www.efficientregistrar.uk Relevant dates: Registered on: before Aug-1996 Expiry date: 06-Dec-2015 Last updated: 25-Nov-2013 Registration status: Registered until expiry date. Name servers: nom-ns1.nominet.org.uk 220.127.116.11 nom-ns2.nominet.org.uk 18.104.22.168 2a01:40:1001:37::2 nom-ns3.nominet.org.uk 22.214.171.124
While many registries only return a "thin" version such as .com i.e.
Domain Name: EXAMPLE.COM Registrar: TUCOWS DOMAINS INC. Sponsoring Registrar IANA ID: 69 Whois Server: whois.tucows.com Referral URL: http://www.tucowsdomains.com Name Server: NS.GBNET.NET Name Server: NS0.DEMON.CO.UK Name Server: NS1.DEMON.CO.UK Name Server: NS1.GBNET.NET Status: ok http://www.icann.org/epp#OK Updated Date: 08-dec-2014 Creation Date: 23-dec-1994 Expiration Date: 22-dec-2015
When the original policy was set in 2002 the registrant info was probably the main source of information about a domain, however with the advent of social media this situation has changed considerably.
Now there are valid reasons for not having the full registrant details available to everyone (via public WHOIS) and though Nominet does allow individuals' details to be excluded, that's pretty much the only exception to having the information published. This has also led to the development of privacy services, whereby the domain is registered to an organisation and then transferred to the privacy organisation so they information is displayed.
This has lead to issues with domain dispute issues as Nominet operate a "3 strikes" rule and if the dispute is over a domain held by a privacy organisation, then that can affect them (when it's really a customer of their's).
Nominet is looking at various options to solve these issues.
Interested stakeholders may submit a response on-line.