Really? I'm 61.8% over EPA rating, and I don't have the Hypermiler tag.
Here is what you do:
Visit your garage. Click on the "Garage" tab at the top of the page.
Click on your vehicle.
Near the bottom of the page there will be a box with "Copy and paste this text to other forums to post your stats:" above it.
Copy the text in that box.
Click the "UserCP" tab at the top of the screen.
Click "Edit Signature" on the left hand side.
Paste the text you copied into the signature box.
Click the "Save Signature" button below that.
You should now have your gaslog average in your signature! Mine is below, and it has the hypermiler designation. It is clickable, so you should be able to click on most people's including mine and see the appropriate stats.
Looking to trade for an early 1988 Honda CRX HF (Pillar mounted seat belts)