Apparently, bold proclamations are reserved for coach Rex Ryan. Jets rookie quarterback Geno Smith says he was reprimanded for guaranteeing a playoff berth in his first interview after being drafted by Gang Green in the second round last month. That, he promised, will be his last Joe Namath moment, though The Post dubbed him Broadway Geno on the front page following his selection by the Jets. “I’ve already gotten in trouble for saying some things about playoffs and things, which I don’t regret,” Smith said yesterday on Sirius XM Radio. “I don’t think I’ll go as far as being as bold as Joe was.”