To solve this problem I am building https://linklonk.com that cultivates trust as you rate content. When you upvote a link you connect stronger to the feed that posted it (which could be a blog's feed) and to other users that upvoted this link before you. When you downvote - your connections to those who upvoted become weaker.
The strength of your connections to other feeds and users represents how useful their content recommendations have been to you in the past and they could be used as a measure of how likely their future recommendations will be worth your time (ie, trust that they won't waste your time).
The content is ranked according to the connection weights - so you get information from the sources that have shown to be content curators for you.
I did a Show HN recently for this project that has more details: https://news.ycombinator.com/item?id=28405643
[1] - like my comment here tries to draw your attention to my hobby project.