For those that don't know, if you kill or knock a player unconscious and they ALT+F4 out of the game their body (and all their gear) despawns.
More often than not whenever I kill people (wether they have gear or not) it is common for them to ALT+F4. It seemingly has been happening more and more to me and my friends. And it gets to a point where it really gets annoying, especially when you know they have something you really need.
For example it happened to me twice yesterday and once when I was starving and I knocked a guy unconscious with an axe and began looking at his body and I noticed he had some good and while I was in the process of dragging it into my inventory, poof it's all gone.
To conclude I believe this "strategy" is plaguing the DayZ community