When you find a bug, make a post just like this and tag it #bugski. Usually someone like mk, thenewgreen, or insomniasexx will see it and see what they can do to work on it.
I added bugski as a community tag to this post. Community tags are the optional third tag which someone other than the submitter can add if they think a post belongs to a certain field.
Important to note that community tags cannot be by someone that hasn't been on long enough to receive a full hub-wheel. Once they do, they'll see the +# icon next to each post.