Strap on hatch racks are a classic solution for occasional bike hauling, but they definitely come with some caveats. They're way lighter and easier to store than hitch mounts, which is a huge plus. However, you're right to be concerned about damage. Those straps can scratch your paint if they're not properly secured, and you've got to be super careful with the bike's weight distribution, or you risk denting the hatch. Plus, they can block your rear view and taillights, which is a safety concern. If you go that route, invest in high-quality rack with good padding, use painter's tape to protect your paint, and practice loading and securing your bike before you hit the road. Honestly, if you can swing it, a roof rack might be a less risky option, but it's all about what works best for your needs and budget.