I successfully moved my blog over from wordpress.com to my own domain recently (Loved WP.com but wanted a bit more freedom to play with templates etc.)
My question is, should I remove all my old posts from WP.com so Google won't penalize my new blog for duplicate content? Is this even an issue (there seems to be some debate whether it is)?
Can I leave my posts up on WP.com blog up for posterity or should I just delete the whole thing so I can build my PageRank on my new site?
Any advice would be appreciated.