Reminds me of something Aaron said after he left Reddit:

http://www.aaronsw.com/weblog/everythinggood

While we were developing Reddit, we always used to run into people who’d recognize us and come up to say hi. “Oh, wow,” they’d say to us. “I can’t tell you how much your site has killed my productivity. I check it a hundred times every day.” At first, we just laughed these comments off. But after a while, I begun to find them increasingly disturbing. We’d set out to make something people want — but what if they didn’t want to want it?

Last year I actually dumped HN and reddit and instead read a weekly digest someone from the coding subreddit created[1]. It was very well curated. Unfortunately, he abandoned it after several weeks.

1: http://www.foldl.org/