That's unfair. Sure there are insufficiently_thoughtful_persons and scammers out there but you can't assume everyone out there who doesn't post a pic is trying to pull a fast one.
Contrary to popular belief, there are still a LOT of people out there who are not tech savvy and while uploading a pic would seem basic, it isn't if you've never done it before.
Hell, there are people on this very board who have asked advice about how to create pics to put in their sig lines.
Leave Fingh Alone!!!!!
There's a Boardie that regularly has sales threads who has never posted a picture. He's been here over a decade.