Maybe it's a CA thing, lol. We get ignored/snubbed by other yorkie owners all the time. It's so weird. It seems more like ignored, actually. I'm always excited to see other yorkies, but the feeling doesn't seem to be mutual much of the time,or the doggy parents don't notice us. I don't take it personally...usually, though I did at first. I do realize I'm totally yorkie-obsessed and not everyone feels the same way (silly them).
I hadn't noticed a particular type that snubs us, but there are a lot of tiny yorkies around and I usually have P-nut the 10.5 lb. teapot with me when snubbed. So, we may be facing size discrimination in our area.