This is borderline illegal what Nominet is doing in my opinion. You can't use profits from one market to subsidies another, it's called anti competitive practises or abuse of a dominant position.
For example supermarkets would love to sell petrol at prices below cost to get people through to their venue, subsidies from their grocery side but they aren't allowed to do so. So in effect they are putting other independent petrol stations out of business.
http://www.expressandstar.com/news/2012/09/16/fuel-price-wars-hit-small-petrol-stations/
If Nominet is running this at a loss then it is in my opinion a abuse of a dominant position and you can complain to the OFT. I think it will be run at a loss, I can't see how it is commercially viable to run without .uk's subsidising it. That is a big big no no.
http://www.oft.gov.uk/shared_oft/business_leaflets/ca98_guidelines/oft402.pdf
5.5
Categories of abuse
5.5 Abusive conduct generally falls into one or both of the following
categories:
• conduct which exploits customers or suppliers (for example,
excessively high prices), or
•
conduct which amounts to exclusionary behaviour, because it
removes or weakens competition from existing competitors, or
establishes or strengthens entry barriers, thereby removing or
weakening potential competition.
5.6 Exclusionary behaviour may include excessively low prices and certain
discount schemes, where its (likely) effect is to foreclose a market, as
well as vertical restraints or refusals to supply where these (are likely
to) foreclose markets or dampen competition. However, whatever the
form of the behaviour in question, its likely effect on competition will
depend on the circumstances at hand and the OFT assesses alleged
abuses on a case-by-case basis.
Abuse in related markets
5.7 As explained at paragraph 4.1 above, Article 82 and the Chapter II
prohibition imply two tests: whether an undertaking is dominant, and
whether it is abusing that dominant position. It is not necessary to
show that the abuse was committed in the market which the
undertaking dominates. In certain circumstances, Article 82 and the
Chapter II prohibition may apply where an undertaking that is
dominant in one market commits an abuse in a different but closely
associated market. This principle was set out by the European Court
in the case of Tetra Pak II
24
.
The OFT may block it, someone may want to drop them a line and report it.