@TJ McDonald
I use FB marketplace. I have about a 15% true funnel ratio. True funnel being, they get through my prescreen questions. My process is this:
Fb user: Is this still available
Me (copy and paste from my clipboard): "Yes! Before scheduling a showing, can you answer the following questions for me: 1) What is your monthly income? 2) Where do you work and for how long? 3) How many adults? 4)- Have you ever been evicted or filed for bankruptcy, or convicted of a felony in the last 7 years? 5) What is your ideal move-in date? Again thank you for your interest!"
This only takes me a few seconds to respond to each person. Yes you get alot of people that have no business inquiring about said property but it's relatively quick. Once you do it enough, you can quickly get a good feel for if you have a serious prospective tenant or not.
Most people never respond to the questions which is fine by me. Many responses to the questions will weed them out right then and there. This process works for me.
Like someone said above, It's just the cost of free advertising.