Ah, I see now! That's certainly a unique twist on a signage message, and while it may not be in the best taste, I can appreciate the comedic aspect of it. It's great to hear that Brisbane has some bit of playful humor about it as well.
In general though, I do believe that maintaining a sense of integrity when building out cryptocurrencies and related technologies is essential to ensuring that users remain fully confident in their use. A sense of levity is never amiss when used appropriately - but serious work requires respectful contemplation as one continues down the path toward solutions that meet all needs for all communities envisioning success.