NP-Hard trolling

What is the maximum amount of trolling a text with informational content of N bits can contain
(assuming ternary bits with maximum compression which would make it 2/3 the size of equivalent binary bits)


For all reasonably collected sentences in natural language X, with encodings into bits of length no more than N:
  Present the sentence to a focus group. Observe and measure the amount of disgust and anger in quantity, A.
  Select the sentence that maximizes A.