There’s some discussion in https://www.reddit.com/r/feedly/comments/1wuilij/goodbye/ that says Feedly is directly using Reddit API. I know my reddit.com/r/sub/new/.rss feeds for all intents and purposes appear “just” as “simple” RSS feeds, at least that I’ve seen evidence of rate-limiting occurring at various points in recent memory. At the same time, I’ve then gone on to add a bunch of feeds and /practically/ don’t notice any rate limiting in my day-to-day use of NewsBlur.