It turns out that some of us despise helmets and have an irrational fear of compulsion legislation in the way that Henny Penny thought the sky was about to fall on her head.
Some others abhor the non-wearing of helmets and seem actually to live in fear of the sky falling on their heads. Or similar.
A third group don't really feel very strongly either way, but get amusement from bating the other two groups.
Also, some cyclists film other road users for pleasure.
I hope this has filled in the blanks for you.
