Auto data population using GO statement

Dear Readers, have you tried the below statement????????
 
INSERT INTO t1 DEFAULT VALUES;
GO 5  --- What this guy will do?????
 
What's the use of GO statement????? It's just a seperator between statements. It makes the statements as seperate batches.
 
Any wild guesses...........???????????????????
 
Ok let's see a small example,

DROP TABLE t1
go
CREATE TABLE t1 (
c1 INT IDENTITY,
c2 as c1*2
);
GO
  -- I have create a table
SET NOCOUNT ON;
GO
INSERT INTO t1 DEFAULT VALUES;
GO 5
select * from t1
 
OK, go ahead and start populating your dummy tables.
 
Cheers,
Venkatesan Prabu .J