Depends on where you are down here. Houston is bad and has been for years but is getting worse ever since Hurricane Ketrina when all the scum from 'Nawlands' came here. I lived in Houston for 11 years until I got tired of the flooding and the BS and move out in 84 to where I am now which neighbors Houston but live on the far side of that new town. Houston back in the 70's and early 80's had a response time of 45 minutes for police but where I am now, it's 10 minutes or less and usually less. Been here 40 years now this April and so far so good but I still 'carry' everywhere I go and sometimes even on my own property. Better to be ready than not.
Can you post up the link to the feedback page? Never hurts to know the latest scams that's happening.
The 'is the item still for available' is a system generated response on FB. It doesn't mean a scammer is asking or someone who is on the up and up.
If you have something for sale and a reseller responds to your ad, they usually offer you 1/2 or less of your asking price.
There were times when stuff flew off of my tables at swap meets and times when hardly anything moved and that was happening in the 90's and early 2000 but I usually didn't venture all that far from the Houston area back then. Couldn't see loading up and driving more than 100 miles on way for a parts swap meet and being down south, going north was just too far and not cost effective.