I just tried to import this wrongly closed question from Physics SE into the category Q&A/Mathematics
http://physics.stackexchange.com/questions/105347/contravariant-and-covariant-vectors-conceptual-problem
But I obtained this error message. Not sure it this link works, so here is what it says
user: Emilio Pisanty
collsision with PO email: a075a2ea7bcc6c71e6dfd70f2823c6b8
users hash: a075a2ea7bcc6c71e6dfd70f2823c6b8
string(4) "1026" credentials: here
we have accountid: 1370104
accountid of unknown user: 1370104
user: Jerry Schirmer
collsision with PO email: e66178404d2a028e5bd5e068cd1b8815
users hash: e66178404d2a028e5bd5e068cd1b8815
string(4) "1095" credentials: here
we have accountid: 333303
accountid of unknown user: 333303
user: Dilaton
collsision with PO email: dilaton@physicsoverflow.org
users hash: 691df337efb4b783e64a6e024d32516c
string(4) "1434" credentials: here
we have accountid: 528229
accountid of unknown user: 528229
user: Stan Liou
collsision with PO email: 15b638e9ecbd3883cec2755362c57474
users hash: 15b638e9ecbd3883cec2755362c57474
string(4) "1195" credentials: here
we have accountid: 528075
accountid of unknown user: 528075
user: BMS
collsision with PO email: 6f448914e823fe0603f1518cc22f6e9e
users hash: 6f448914e823fe0603f1518cc22f6e9e
string(4) "1614" credentials: here
we have accountid: 1939318
accountid of unknown user: 1939318
user: user31748
collsision with PO email: ca055db7709bc4f5be81d6abf47a5441
users hash: ca055db7709bc4f5be81d6abf47a5441
string(4) "1615" credentials: here
we have accountid: 3495568
accountid of unknown user: 3495568
user: Iota
collsision with PO email: 25ce3ce2b013e8fa49e517055cb73770
users hash: 25ce3ce2b013e8fa49e517055cb73770
string(4) "1616" credentials: here
we have accountid: 2895414
accountid of unknown user: 2895414