I remember this post it was a couple of months ago, I think the paint had started to peel off so I pressume they were claiming that it was from the removal of stickers which is a fair comment IMO.
Hair dryer all the way- warranty issues for paint defects, never heard so much bollox in all my life, unless the dude removed them with a flamethrower!
Claim for paint defects all the time if caused by corrosion or factory problems with the painting or assembly. Never had the need to claim on a swingarm mind.