The only real effect of those signs is to signal which type of insufferable dork lives there. Rolling with classic halloween decorations on the other hand projects great virility and the ability to throw an enjoyable barbeque
There's a little cottage industry among philosophers of making versions of those "In this house" signs that feature all the weird arcane bullshit positions that philosophers have about weird inscrutable issues that professional philosophers care about and customizing them to whatever brain-melting combination of things the particular individual believes. That is 10,000 times less cringe than having an election sign. I'd rather have a yard sign that says "in this house we deny the analytic / synthetic distinction" than an election sign any day of the week.
I had a Beto sign and a local candidate sign in my yard a few years ago and then someone drove by and took pictures of my goddamn house. No more fucking yard signs for me!
So many obnoxious Kamala signs in my town, I actually let out a breath of relief when I saw a lawn with Trump signs. At least that person is upfront with their hatred.
It’s like if half our country was flying a Ukraine flag and the other half was flying Azov Battalion signs and they squabbled with each other over whether it was good optics to applaud SS veterans publicly yet
You get them in return for a campaign donation exceeding a certain amount, and then the self-important voters love to let all of their neighbors know about it. Not sure that their affect on election results could be isolated but my gut says they don't do shit compared to the constant pummeling of advertisements and whatever news source people are hooked in to