oh yeah....some times they are legit, just people who don't quite understand how the site works....but I think I may have gotten a few that raised some red flags...
I just reply with "The cars I post here are not mine...please contact the actual owner on FB/CL..through the link provided in the post....Good Luck!" if it's a member with a decent amount of posts and likes, then I wait to see if they reply in case they need help....but it's someone with just a welcome wagon post, then I just leave the conversation with the ignore future messages option ticked.....
Since the "for sale from other sites" section was started, the number of times this happens has decreased a ton since it doesn't have the contact seller in the top right.....but..It still...happens..