We made a change to our site where we all of a sudden we are creating a large number of 404 pages. Is this effecting the crawl/indexing rate?
Currently we've submitted 3.4 million pages, have over 834K indexed but have over and 330K pages not found. Since the large increase in 404s we've noticed a decrease in pages crawled per day. I found this Q & A in Webmasters (http://googlewebmastercentral.blogspot.com/2011/05/do-404s-hurt-my-site.html) but it seems like the 404s should not have an effect. Is this article out of date?
What do you think fellow Moz-ers? Is this a problem?