
Not "clearly" by any means. Abbreviations in general are very arbitrary and you have to both know the particular words they meant in the context and the context itself to understand.
Like would everyone understand me if I said "I'm TNTL"?
I'm a native speaker, and while I didn't think it meant child porn (bc grammar, "the cp is a piece of shit" definitely cannot be referring to that), I didn't realize it meant crown prince until I read their replies either. CP isn't used for crown prince anywhere near often enough to expect everyone to know what it means.
In fact, anyone that doesn't already know cp=crown prince in this context, or even any normal person googling what cp stands for would probably think it means child porn lol.
Expecting a non-native English speaker to both understand that it's impossible for cp to mean child porn with the way it's phrased (esp considering that non-native English speakers also comment, so it's common to see grammar mistakes anyways), and also have seen the abbreviation enough to recognize that it means crown prince somehow is way too much.
And as stated, it's about their response to the question, making their own assumptions that they're a pedophile and are a horrible human being instead of just explaining that CP means crown prince.
It's fine to not like that someone immediately jumped to thinking about child porn, but that doesn't mean that their response was justified.
Even I felt kinda weirded out when I saw the question, and if I was OP, I'd ask why they immediately thought I meant child porn, bc if it really did have any of that, why would they think I'd just write a single line instead of huge warning in caps and a long paragraph of hate for the author telling everyone to not read it bc it's disgusting.
But the way OP became overly hostile and starting insulting them and telling them to kill themselves is way over the top, which is the real issue here.
And tbf, I think telling a real person to kill themselves is much worse than someone being ok with 2D anime child porn in a series even if they actually were into that lol.

Which is never ok. That kind of talking is horrible.
Just because you're on the internet, doesn't mean you don't have consequences for what you say.
I know in America. It's not protected under free speech to threaten anyone, or tell someone to off themselves. But because it's the internet, people like to think they can say what ever they want, and not suffer for it.
Most times when people act this way online, it's how they act in IRL. Which sooner or later they are going to eat a fist to the face.
Just so people know the Person with the username "I swear i was normal" is telling others to unlive themselves.
It all start when someone mistaken the abr. CP for Childp***. Which is a normal abr for CP.... not Crown Prince.
That behavior is uncalled for. They are also doubling down on all who are calling them out. And than making so they can't reply to the thread. So I am posting this here. That is not good behavior. That is horrible behavior.