A couple of really excellent articles on the whole matter are Stacia Kane's and Susan's guest post over at Regan Leigh's blog.
I don't want to get into any debating on here, but I thought it was an important enough discussion to be pointed out. I think all of us here are working toward that future goal of publication, and not a single one of us want anything we do online to jeopardize that.
Have you all seen this topic flying around? It has certainly opened my eyes and made me think. Either way, it's something we each have to decide for ourselves, but it needs to be an informed decision just like anything else.