I can't stand the expression 'nodder'. As Corny says, if people still have to learn something from you, help them out. Try to remember when you started out yourself. Show consideration--you can afford to. Give them something to aspire to.
Creating divisions among street users is a stupid attitude. When people are on bikes, they take up less space than when they're in cars, and it's far easier to live with others. Potential mistakes are much less of a worry than when people are in cars. It's good. People on bikes don't pollute much.
If you're an ancient, hoary, insurpassable cycling expert on the best bike ever, whose riding stops people in their tracks with its beauty and elegance, who's the best invention since differential gearing, who's the only cyclist visible from space, remember that imitation, even poor imitation, is the most sincere form of flattery.
Nodder.
Neiger according to google translate. :P