I have a silver WRX, I also debadged about a month after I got my car. Maybe you did it too soon...before the paint fully cures. I used dental floss (didnt have fishing line) I must have used like 50 feet of it cuz it kept breaking. I used a hairdryer to heat it up and flossed it all off. Took me about 15-20 minutes. The remaining goop/glue came off with WD-40 with lots of scrubbing. I washed the area and waxed it with meguiars. You cant even tell there was ever any letters/badging there. No chips, no scratches, no marks. You musta done sumthin wrong.