To start Daniel Shay was a farmer and not rich, the wealthy were scared that farmers would kill or hurt them, or even try to take over the government. The rebellion was fairly violent. I learned this a few years ago sorry if some details are slightly dry. Hope this helps though!
Nope not at all it was not a good thing to do sorry if im wrong
Its true that they never went to war without putting their helmets on
The problem was that the confederation printed it without thinking much about it which resulted in there being a lot of it and it essentially became worthless because they printed money when they needed it instead of growing the economy. Trading partners became wary and stopped trading with them.