"He will sire hard doing offspring that get discounted and you will develop a reputation as selling poor cattle. The buyers remember."
Yeah... I'm pretty sure that for all the years I sold cattle through the local salebarns, the buyers had no idea who I was, which calves were mine, nor knew or remembered where those good quality calves came from. YMMV. Hell, most of the time, you couldn't even get the ringman to announce that they were fully-vaccinated, weaned, and bunk-broke.
That's my take on that, other than when I was able to sell directly to a local order buyer - who knew what we had, how they were cared for - and knew, after buying them for a couple years... that our calves never got sick. Sure hated when that whole Eastern Livestock debacle put her out of business.