Wasnt there the "download file" button for lagging connection also in use to lag out,
the server can tighten up these issues with the max lag setting
checkServerTimeSpeed=1
; check server's system time [0|1]
; Anticheat, Server toClient.
checkClientTimeSpeed=1
; check client's system time [0|1]
checkTimeSpeedDifferense=0.03
; Max speed difference between system times [%]
;Maximum Difference (3%)
checkTimeSpeedInterval=5
; Measure difference every <num> seconds
; Difference allowed (5 = 5 seconds)
Print screen was sorted some time back but it wont stop people manipulating their connection.