One could make a case for "The Trouble With Tribbles," "A Peice Of The Action" and "I, Mudd" deliberately veering into camp, particularly the latter two episodes. But two or three episodes deliberately humourous episodes out of seventy-nine does not make the series predominantly camp as a whole.
People seem to use the word "camp" a lot and I'm not sure I understand how they mean it.
Basically, anything that isn't "dark", with characters wallowing in constant "angst" and "Daddy issues" is dismissed as "camp". "Fun", an characters who act like actual people is not allowed.
This view is incorrect. These stories have their place, and I can enjoy them on occassion, but now pretty much EVERYTHING has become that. And it has become tedious.