alt Hacker News> removing the suggestions form entirely, because it results in exactly this level of expectation
I think the expectation is less about the suggestions form and more because of the tagline "a place to find good blogs that interest you". If the tagline was clearer that these were hand curated, then I think no one would care about the process you currently have.
There's always some friction between implicit assumptions of reader and writer. I assumed they were hand curated. I've never seen algorithmic selection produce the kind of variety I see on there.