Originally Posted by animeHentai

After 3 years of love between me and Bing, last year one of my sites got deindexed on Bing, and it happened in a short time. This year another one started to get (slowly) deindexed a few months before, and the last week two more entered the same process.

All my sites are still indexed on Google (and Yandex), ranked, a lot of organic traffic... No problem at all there, so I cannot understand why it's happening on Bing.

Bing Webmaster Tools shows a linear drop of indexed pages (and clicks dropped to zero), but there's no explanation, and no important crawling/indexing/SEO errors are reported. I still didn't contact them.

Sites have nothing in common (except being adult) - some have fully original material, some have imported and embedded material (WP-Script), some are blogs, and some are tubes. When it comes to links, they are all the same (both deindexed and untouched ones): there's link exchange, bought links and guest posts, Web2...

Any similar experience and maybe a solution?

Of course, Google is the most important, but why to loose organic Bing traffic if I don't have to?