Simple. They've built what search engines want vs what humans wanted: content that will rank in the search engines and get more shares/clicks. Thin product comparison pages no longer rank well and even worse a lot of them may give the signal that you're not a quality site.
Sometime this year or last, these guys probably looked at their traffic growth and realized this existing model was never going to cut it. Their sole strategy is search engine traffic and their pages were not ranking.
Sometime this year or last, these guys probably looked at their traffic growth and realized this existing model was never going to cut it. Their sole strategy is search engine traffic and their pages were not ranking.