Word of mouth is how you find such businesses or local boards people advertising their services. That's 90% of it or google search taking me to their FB page.
But yeah, if it means I can support local businesses? It's a price worth paying by having a fb account with no activity or info.
At the end of the day, i care about the local guy running butchers out of a truck going to spots when they have meat more than giving money to tesco who under cuts farmers. Fb allows people to have automaty. While it's not black and white. I do admit it's way more on the dark side.