I'm on the lighter side of the contributers myself...have pledged $18.58 per month for 12 months.
I know its not huge...but thats my point - when I tell my mates the 1858 resonates, they can see how affordable that option is and how it can be fitted into the monthly budget..5 to 6 less coffee's per month.
If by non-violent means of persuasion we can get just 35% of the thus far non-contributing members to do the same the debt is demolished!