I am not sure if we are friends on StumbleUpon but I know you Stumbled my real estate website and I appreciated that. So when you make room after firing some of those folks I would be happy to have you added as a friend.
I have recently been using Akismet as well and I have experienced the same results. Friends that are definitely not spammers getting snagged by Akismet. These are good valid posts that add to the conversations, not just 3 or 4 word posts.
I would be interested in finding a better solution for WP.