This is why I always wanted to have a feed metadata sync protocol: http://www.the-digital-reader.com/2014/01/18/feedly-found-new-way-steal-page-views-publishers/ I wrote about it a year ago https://jeena.net/feed-metadata and there are some people working on it https://arturovm.me/post/introducing-pond.html but It still isn't interesting for the mainstream.