That's one I would definitely debate with you DVD. Many people who ignored Inktomi for years are now learning that the title tag is one of the more important things in Yahoo. You can't fool Google that well with just a meta tag and a few lines of text. I don't see that same type of repetition in Google. You’ll have to point me to a category in Yahoo where long titles rank high outside of phrases.
As I said, in my areas of specialization I am not seeing this, but I am seeing it in Google. For example, looking at the top 100 results for several different money keyword queries in Yahoo, there is very little repetition on page titles in the SERPS. But in the case of Google, there is much more repetition of title. For lower $$ keywords, I see a little more use of spammy titles, but I see the same thing on Google. Overall, I think Yahoo is doing a much better job.
In addition, Google has a problem with spammed anchor text that is far worse than Yahoo.;)