2 Name: *insertnamehere*!!mhJDjCwh : 2012-01-02 21:39 ID:3t8lUqDn [Del]
Tripcodes are there to prevent you getting mistaken by someone else of the same name. This is also a good measure, including the ID thing next to the time, date, etc., to prevent someone taking your name and trolling you or something.
And I see you managed to get a unique tripcode, so I don't need to go into detail about that.
3 Name: *insertnamehere*!!mhJDjCwh : 2012-01-02 21:39 ID:3t8lUqDn [Del]
... Unless you meant, you just never used the Test board before. Then, the Test board is here just to... Test stuff, also used for Reltair's testing ground as well.