I found this out Sunday night.
Apparently if someone is constantly using E on a door to keep it open for themselves, and a different person tries to open the door on their end, they won't be able to open it for themselves!
I found this out while holding the double doors open at /tele help to let setk get through the turrets to get to Xerp's Help Desk (A seemingly impossible task). However, once I started trying to hold the doors open for setk, He was unable to open them, even after logging off and coming back again (He thought it was lag ).
This could be bad for spamming reasons. -SSJ
[02:17] <@EightBitMMO> <setk> err
[02:17] <@EightBitMMO> <SSJ Dragon> go
[02:17] <@EightBitMMO> <setk> i cannot open the doors.
[02:17] <@EightBitMMO> <setk> LAG
[02:17] <@EightBitMMO> <setk> seriously
[02:17] <@EightBitMMO> <setk> laggg
[02:17] <@EightBitMMO> <SSJ Dragon> lol
[02:18] <@EightBitMMO> [18] Players Online
[02:18] <@EightBitMMO> <Xerp> Hm
[02:18] <@EightBitMMO> <Xerp> Guys if you need help you need to approach the desk
[02:18] <@EightBitMMO> <SSJ Dragon> lol
[02:18] <@EightBitMMO> <setk> oky then
[02:18] <@EightBitMMO> <setk> lols
[02:19] <@EightBitMMO> <setk> wtf?
[02:19] <@EightBitMMO> [18] Players Online
[02:19] <@EightBitMMO> <setk> i still cannot open the doors
[02:19] <@EightBitMMO> <setk> HELP