Yes, heavily. If your blog doesn't have an RSS feed, I won't read it. NewsBlur is incredibly powerful and makes filtering 100s/1000s of feeds easy.
Agree. I no longer read Players Tribune because they killed their RSS feed. Several teams I follow don’t have an RSS feed, therefore, I don’t get news from the official team sites. I don’t even care if the RSS feed makes me click through. Give me a title, the first sentence, and tags. Then I can filter and click through as I like.
Yes, 300+ feeds in Feedly (pro account with some "mute" filters)