On the DayZ Main Menu, the statistics shown do not seem to correspond to reality, and furthermore, they seem to show one player's statistics to multiple players who are logged in. For instance, when I was playing with another player on a DayZ server, we both logged out, but each of our statistic's screen on the Main Menu was 1) totally inaccurate (neither of us had killed 36 other players) and that 2) both of our statistics was exactly the same, as if my character and my teammate are the same player, which is impossible.

See the attached image. This was on a modded server (Sumrak's Namalsk Official), but I see inaccurate statistics aspect #1 noted above, quite often on other servers (including Official).