My commie-bulldyke neighbors put up yet another sign to go with the rainbow flag, trans-colored upside down American flag, “in this house” we’re a bunch of dirty commies-sign, among others. This one says not to mow in May for the bees or some shit… so I made sure to get out there today and mow. Happy Mothers Day!
If your feelings towards the neighbors run to dislike rather than just annoyance, you could always get some competing signs or make your own, I've got some neighbors with the "In this house" sign, but they keep to themselves outside of the sign and a flag, so I haven't bothered putting one out in response, but that possibility always comes to mind when I walk the dogs in a way that takes me past that house.