why has big bang made some of their songs on ইউটিউব private T_T IT UNFAIR high high and knock out is private T_T WHY WHY

WHAT HAVE US অনুরাগী DONE TO DESERVE THIS T_T হাঃ হাঃ হাঃ but seriously and how DO we watch them i mean it doesn't help their publicity on the songs much if they do that T_T