See my examples below then. Immediately being confronted with "prove it/provide links" responses to a stated opinion, based on personal experience of watching the show in question, is not very helpful either.
You have made fact statements, not stated opinions, in addition to not providing any foundation to base those on which would be required by others regardless.
If I say "Show X is bad" then people will expect of me to back up this opinion somehow. This can be as easy as citing examples of why but not by handwaving as "I watched it and thought it was bad".
Example; I think Steven Universe is a bad show. I've watched it through to Season 2 yet I found it lacking in character attachment and depth, meanwhile the animation and storytelling was quite good. Overall I did enjoy it but not enough to keep consuming it.
That is how you should have approached this so people would not jump on you. You can explain it but lacking any explanation people will demand it.
> You have made fact statements, not stated opinions, in addition to not providing any foundation to base those on which would be required by others regardless.