each user can add the feed they prefer then the system will automatically import the data daily
Great! Also, good insight for basing a search engine on RSS. It is naturally spam resistant: SEO people and other spammers don't like feeds because they cannot bring them clicks and ad views, so no incentive for spam.
This is indeed the dominant view so the observation is true, but the history here baffles me; web feeds aren’t required to include the full content. Ad-funded publishers could easily just include links and descriptions—the same as they’re content to do for Open Graph previews—and continue to benefit from web feeds instead of apparently writing off the technology entirely.