I don't know so more but i feel yahoo hate my site. on some keyword i rank high on google but yahoo not giving me right place after one year. Suggest some idea to get rank high on google.
Don't worry about it too much, yahoo's market share has fell drastically, even if you had good rankings it wouldn't send much traffic.
Yahoo doesn't hate your site or at least not just your site. I just advise people to use Google, its less stressful and gives results faster.
If you share what you've done so far SEO-wise, we'd be able to give you better, more detailed advice.
Yeah, yahoo should not impact your site too much for smaller and smaller market.And they should use bing's search marketing, so should be bing's issue now.