In terms of cringe, I don't really have much of a problem now. I think maybe I have become the cringe itself , a little bit.
Then, for me, there are some things that mix cringe and disgust, like all those suggestive and inappropriate Rule 34-ish fanarts... Or the world famous "jar" incident, which became so well-known that it even made me think all fans were that kind of people (I didn't know the show nor the community back then).
But, as long as you don't hurt/abuse anypony, feel free to enjoy whatever you want.
I prefer to focus on the wholesome side of the show, where fans create awesome music, covers, art, and animations