This is a long yet fascinating read on how poets hacked libel laws to push their ideas. For example: But now, go search all Europe round Among the savage mon

This is a long yet fascinating read on how poets hacked libel laws to push their ideas. For example: But now, go search all Europe round Among the savage monsters crown’d, With vice polluting every throne (I mean all kings except our own). Thanks to the last line, the poet could claim plausible deniability. Even better: due to semantic evolutions, the mere "imagining" that before meant plotting made thought crimes an attack on monarchy. Therefore, by saying the poet was attacking the king, the prosecutors would be guilty themselves of such "imagining".