Quote: "And so a definition should be fixed, positive, and sure. Therefore the definition of a crime, which may not be a crime in another country, and may not be a crime in the future, has no fixed definition"
In your opinion. Language evolves and as do the definitions of words we use. If what you said were true, the English language would be exactly as it was when the dictionary was first invented. But it has dramatically changed since. If I were to call you 'gay', would you think I was insulting you, accusing you of being a homosexual or generally are quite joyous? Most people today would think I was insulting you, a century a go the dictionary definition offered a very different perspective. People would take the meaning to be a compliment and nobody would feel anybody was questioning their sexuality.
Dictionaries use a descriptive form of language as oppose to prescriptive. Based on how words are used. The prescriptivist approach failed a long time ago, but at least it help use devise a standardised form of the language, even if it's still ever changing.
What is consider a crime is defined by the law of the country. For example, it's a crime in the UK to carry a firearm, in the US it is not.
In relation to the topic we're talking about somebody subject to US law. To be honest, I don't know if what the guy did was a crime under US law, I'm not a lawyer nor do I know much about US law.
Even your definition of definition is wrong:
Quote: " a statement of the exact meaning of a word, especially in a dictionary: a dictionary definition of the verb
an exact statement or description of the nature, scope, or meaning of something:our definition of what constitutes poetry
[mass noun] the action or process of defining something: a question of definition issues of methodology and definition
2 [mass noun] the degree of distinctness in outline of an object, image, or sound: the clarity and definition of pictures can be aided by using computer graphics
the capacity of a device to make images distinct in outline: [in combination]:high-definition television"
Quote: "I don't think Pincho is trolling (ie. making inflammatory posts for effect), I just think he has some crazy ideas."
This is what I suspect. Much of what he says much of the time twists things in such away that suggests he's performing mental gymnastics rather than to accept criticism, instead of just saying what gives a negative effect.
Then again there are good trolls out there, but I am with you on this.