All very valid points as well as potentially good solutions! I 100% agree. It's a fine line to walk but this guy's posts are starting to just clutter up the feed and I suspect that as SN popularity grows, this will be a more common occurrence and one that needs to be addressed.

satoshisat

Should SN implement some sort of reporting system to report spammers?

I'm wary of going the moderation route - it's too subjective. I like the market based system of SN. In the spirit of Bitcoin, spam can be prevented by increasing the cost to post with each successive post. The cost can rise exponentially or polynomially in the number of posts without upvotes. If a post gets upvoted, then it won't add to your posting cost because the post has added value. 

I guess this is not entirely secure against sybil attacks because a user can create multiple accounts to upvote their own posts. I forgot if there was an account creation fee, but if there was then that'd be a solution