willybfriendly, thanks for the insight!
I am running a website that dominates Google and MSN serps (#1 to #3) for all high volume keywords related to the website niche. Yet I am not even in the first 100 in Yahoo
After I read you post and realized that I have <title>=<h1> on all of my pages, I checked the pages that do appear on the first page of Y serps for one of the keywords of interest.
Out of 8 pages having the "keyword" in the <title>, 1 had a completely unrelated <h1> and 7 others didn't have a <h1> tag at all!
If that's indeed the reason for the penalty, it is so dumb of Y. I believe my website is an "authority" in its niche, yet many dozens of spam and junk sites rank higher just because their webmasters were too ignorant/lazy to build the correct page structure and put a <h1> tag
Not sure I gonna ruin my pages just to please Yahoo though ...
Do you have <title>=<h1> everywhere? How about your "competition" ranked #1-#10 in Yahoo?