So are you saying that if someone tweets something ridiculous like "Did you know that Jews drink the blood of murdered Christian infants? #zionists", they should be arrested and charged for this?
That seems to me a highly disproportionate infringement of this person's freedom of expression, as well as being completely pointless. If you're going to have the police arrest people for posting conspiracist idiocy on the internet, they'd have no time left to investigate real crimes that meaningfully affect people.