Your second example is valid. But your first example is a complete strawman. Bansky didn't sue, the property owner did, because they liked Banksy's thing and didn't like what the vandal did.
I'm a fan, but there's still a point to be made here. Banksy works on public sites do function in part as ads.
A more apt comparison would be a company giving out free samples. If you get a free sample of a delicious new cheese brand, you might talk about it to others and raise their public profile. But that only works if the cheese is delicious. On the other hand, an ad might just rudely scream "KRAFT MAC AND CHEESE" at you for twenty seconds in hopes of subconsciously leading you to buy their product when you see it in the store later that week.
And his quote in the top post is hypocritical, at least the advertisers pay for displaying the ads, banksy appears to use the anarchist non payment approach.
Maybe all his revenue goes to charity but I sense an artist complaining about capitalism while laughing to the bank.
I have never, ever felt like a piece of Banksy's art, or any original piece of visual artwork for that matter, is being shoved down my throat. They're quiet, static, relatively low in number, and easily avoidable & ignorable. I've never felt distracted or distressed because my local coffee shop has a new mural on their wall, and nobody has ever forced me to walk through an art museum in order to get to the grocery store. On the other hand, advertisements are loud, moving, insanely numerous, and totally non-optional. My local subway and subway stations are plastered in advertisements; if I want to transit anywhere, I must endure them.
Plus, the motives are different! Sure, Banksy or $artist_name likely want folks to find their art appealing and then compensate them somehow, via buying copies, commissioning new art, spreading their reputation, whatever. But advertisers do not care if you found their ad appealing; they just want you to buy their product. In fact, many ads are purposely obnoxious or abhorrent just because it's an effective way to bring your attention towards their product. How dystopian is that?
And yes, there's some irony in Banksy, as someone who occasionally benefits from copyright law, to be making this point. But that doesn't make him wrong! And, it'd be far more ironic if, I don't know, Sergey Brin or someone else who use hugely benefited from advertising and copyright law were making the point.
Does it, though? The linked TMZ article suggests the lawsuit was filed by the Los Angeles DA on behalf of the property owner whose property lost value because of the defacement. It doesn't appear that Banksy himself is involved in the lawsuit.
The tradeoffs for choosing this path will be different for different situations, but I don't think it's fair to say that taking advantage of rules you claim to hate is always clear-cut hypocrisy.
The whole point of having a strong defense force is to have peace. People don't start wars with a strong opponent, only a weak one.
Sometimes it's a necessary tool. Sometimes people are experimenting. Sometimes people do actually sell out.
The problem with this argument is that it tries to shut down the above questions.
Details matter, and bad arguments like the above rarely help.
* The prevailing system will never be toppled by the conscious choice of the individual consumer.
* No one person has the power to overturn capitalism, no matter how persistent.
* There is no such thing as ethical consumption under capitalism.