Hi bennygill -
This is intentional, but it's just a CSS hack so it's easy to change. In the plugin folder, there's a templates subfolder, and within that a file called comments-bbpress.php
Copy that file into a "bbpress" folder in your theme directory.
Now edit it and look for the CSS block at the end. You want to remove .bbp-reply-form from the selector.
Save it and that change will persist even if you update the plugin.
Let me know how that works for you and if you have any questions! I hesitate to change the default behavior, but if a lot of people want this, I'd be happy to change the plugin.
- David