I think a lot of yorkie owners just aren't as into their dog as I am into mine
I've met a lot of people that don't have a clue about the specific needs of a yorkie (walking their pup on its collar, call it a teacup etc) and are not interested in talking about their dog. It is interesting the different type of people out there. I also think that not everyone is social... You never know.
I don't know that I've been 'snubbed', too much but I do occasionally get the "Oh, I have a yorkie too, but he's half the size of yours!" lol. Like it's a competition for who has the smallest dog...