I can only say that I do think snobbery exists. It has just been bikeweek and on my travels during it encountered the annual snobbery, someone who was new to cycling and got an old race bike and being told that she should get something better by multiple people.
So do I. But cycling is such a broad church it is almost bound to have snobby cliques. There are people who decry my wearing baggies on a road bike, there are people who nod/wave to me when I'm riding drop bars and who ignore me completely when I'm not. People who laugh out loud when I ride the Strida (and, honestly, who can blame them, it is hilarious). People who are apalled that I turn up on a club run on a fixed on full fakenger get up and then beat them up the hills.
But then I'm snobbish about
People who ride folders that aren't Bromptons
Anyone who isn't female, or an elite class rider, and who shaves their legs
Downhill mtb riders who push their bikes up all the hills
People who drive to rides with their bikes on or in the car
People who ride fixed but can't trackstand but try to do so on the roads.
People who ride bikes but can't undertake the simplest of repair tasks
and all of the above is utterly and completely irrational. I am pleased to the point of smug to say I've persuaded a few people from BSO's onto decent bikes over the years, often by helping them find a tidy 2nd hand good bike.
But can I say once and for all, to everyone, it isn't a scalping unless they are riding a better bike than you.