Well, there you go. I guess my thought is that they shouldn't need a politicized sign at all for a city full of Christians to notice and help -- especially in sub-zero weather. These tents are layed out along about a mile and everyone is obviously homeless. They've been there a year or so and no sign is needed to see them. That $150 could have helped someone more than the sign. I guess I was thinking more about the basic rules of humanity.
Assumptions abound, are you sure whomever made the sign did not also spend $150.00 dollars on food fuel or clothing for these people?
Further who gives the bigger gift... Those who give a bit of cash or food to help or those that not only give direct help but who spread the word in a unique way that brings attention from Hundreds of Thousands?
Think it through and you will eventually get there.