You can't totally delete a course you've finished on BMF.io, but there's probably a way to hide or archive it so it's not just sitting there on your dashboard. It's kinda like putting it in a drawer instead of throwing it out. Full-on deleting isn't really a thing since the course is part of your account and you might wanna go back to it later. So yeah, while you can't wipe it out completely, you can at least clean up your view a bit.