Its true, its true...
Actually, I DO hate the Super Teacher, in his first adventure, he just annoyed me as someone who looked like he belonged on the Robot Planet of "Futurama", and I don't like his return at all, the romance seems too quick, I detest the idea that "bigfoot" is real
and the resolution is too harsh for a teacher to teach, especially as Superboy had about a bijillion earlier adventures where "things aren't what they seem"...
But I do think that the second appearance is part of the evidence that Superboy is Superman about when he leaves for college or a bit later...