The #Twitterjoketrial (newstatesman.com)

The appeal is being heard right now. I just hope obvious, blatant, staring you in the face, common sense prevails.

I'm not expressing an opinion on the case either way, but comparing Paul Chambers to John Betjeman is rather flawed. There's a big difference between "I wish someone would bomb X", and "I'm going to blow X up".

Even out of context, Betjeman's line couldn't possibly be interpreted as a threat.