Reddit, Redditors and Self-Promotion
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The person in the video did not do a), and I see many people in Hacker News link to a startup without mentioning that it's their startup or a startup by a friend. (A quick Twitter search usually identifies that)
Yes, it's a double standard. I also wish that Reddit would remove the 10:1 rule because no one follows it.
A good policy that many subreddits respect is an [OC] tag on submissions, which helps alleviate the disclosure problem, and one I've used frequently.(http://www.reddit.com/user/minimaxir/submitted/) It also helps that I don't benefit financially or socially for any OC content submissions.
I've come to the conclusion reddit loves self-promotion, but only when it like the content. Not easy for users who actually create content.