When you ping weblogs.com, you give these details for the world to use. That's your opt-in. That data is free game for anybody to play with. BlogShares provides an opt-out mechanism because I want to be nice not because I have to. Weblogs.com isn't for any particular purpose, you opt in to it you opt into everything associated with it. [link]
When the [Blogshares] site goes live all shares in your portfolio will be deleted as will your transaction history for the beta period. You will only take your cash balance forward. Blogs will have their shares reset to the original 5000 and you will receive 1000 shares in every blog you've claimed ownership of. So be sure to sell your stock early. [link]
Thanks for the heads up. I've been knee deep in work and school for a couple days, so I was unaware of the problem. It seems the pages at blogshares.com changed just enough to break the plugin. I'll try and get a new version out tonight, along with support for the portfolio RSS feeds.I'll post more info when I have it! (UPDATE: See here.)