Interesting. As I've been considering them, for a few trek decals so after you post I took a look at 2,800 feedbacks posted at ebay. There are 4 that say decals are wrong sized, all were for different bikes too. a few others commenting on slow delivery but very few for 2,800.
Most surprising was for a Trek 930 set because, those are new enough to get right, especially from a place that specializes in road bike stickers.
As I experienced wrong sized decals for an 80's Schwinn cruiser but not from them, and was told that nobody every complained after so many years of selling them. It seems to me that very, very, VERY few people who buy stickers and decals for restorations have taken the time to be sure they place an exact match.
And e-bay, worse, even less have the guts to put negative or neutral feedback.
Also noted about Verlocals in eBay's feedback, when there's a problem good luck getting assistance too. 1 of 4 gave up, a few others took quite a while. nobody commented otherwise.
Your describing an arrogant butt head. I did ask them a question months back and it took 2 days to get an answer. Regardless, The question was about an 84 decal set and I was disappointed that they could not cite with certainty what two colors were used. Otherwise it wasn't difficult to get email .
Looks like there's room for competition to swoop down on the whole market and wipe everybody out. [grin]