Use some common sense man. Perhaps somebody sees you frequently walking down the street picking your nose. They think it's wrong so they get the government to initiate force against you to stop. To the person who nearly pukes whenever they see somebody picking their nose it seems like a good idea to them to get the government to initiate force against you for picking your nose in public. That's why there must be a victim that can prove initiation of force was used against them. The person that pukes could chose to look the other way just as another person chose not to look at the porn magazine lying on the park bench.
Comparing public-nose-picking to the most vicious and degrading of pornography does not dig you out of the public relations pit most libertarian ideologues find themselves in, bud. You try so well to carry their water for them, and yet you continue to eschew their label. Good try.