I had a coworker tell me I was a sinner when I told him I usually go about 10 MPH over the speed limit on the highway on my way to work. He was dead serious that knowingly speeding is not only unlawful it's a sin. I didn't agree.
To speak to this moronic coworker ever again... that would indeed be a sin.
Shunning the stupid is ABSOLUTELY NOT A SIN.