Just be clear I'm not riding round gurning like the village idiot trying to hug roadies, just find there's considerably more socially inept roadies than MTBers as kinda proved in some of the posts. The 'they probably did'nt hear/see you' thing does not add up either.
doubt it, from experience, the key difference between mtbers and roadies, is as follows.
Roadies go for rides to cafes for tea and cake and a chat, mtbers drive to car parks to discuss the latest upgrade to their bike before driving home.
Regarding strangers, I find roadies far more willing to help others, mtbers tend to be too wrapped up in themselves, far too many cliques.
Roadies are more likely to offer help if they can. The acknowledgement you get isn't that obvious though, and when your arse is hanging out you do tend to get tunnel vision.