Потеря pagerank при 301 редиректе

В интервью Matt Cutts говорит, что при 301 редиректе с одного домена на другой есть некоторая потеря pagerank. http://www.stonetemple.com/articles/interview-matt-cutts-012510.shtml

Eric Enge: Let’s say you move from one domain to another and you write yourself a nice little statement that basically instructs the search engine and, any user agent on how to remap from one domain to the other. In a scenario like this, is there some loss in PageRank that can take place simply because the user who originally implemented a link to the site didn't link to it on the new domain?
Matt Cutts: That's a good question, and I am not 100 percent sure about the answer. I can certainly see how there could be some loss of PageRank. I am not 100 percent sure whether the crawling and indexing team has implemented that sort of natural PageRank decay, so I will have to go and check on that specific case. (Note: in a follow on email, Matt confirmed that this is in fact the case. There is some loss of PR through a 301).

Я то хотел было транслировать фид в twitter и пинговать feedburner, чтобы для понта сокращать ссылки через goo.gl :)