I agree, we've done the soup on a painting now, it becomes reiterative and dull. Pulling down statues seems to work better. Blocking motorways, I don't even know how to measure success except in headlines?
What do you think would be a more significant action? (bearing in mind thought-crime, incitement to violence, conspiracy to terrorise, all those laws apply in this place just as any other! But in THEORY what would a potential significant action actually do?)