First, read this
http://www.paulgraham.com/fix.html
Now, then . . .
PHP: Because there was nobody around to stop us.
PowerBuilder: Because you are a moron. (Also: We are, too).
Haskell: Because you are a moron. (Also: We are super geniuses and have proved it).
FORTH: Can We Because
Microcode: Because assembly language is too high level
Ada: Because we were just following orders
Brainfuck, Intercal, Whitespace, et al: Because!
R: You cannot reject the null hypothesis that we really don’t like programming
C++11: C++89 didn’t have enough ampersands.
NewtonScript: Because Walter can!
Intercal: because Fortran doesn’t have a ‘come from’ flow control statement.
Intercal didn’t have a “Come From” either, originally. It was added because some folks who didn’t get the memo thought exceptions were cool (like bow-ties).