Yes, you could abuse that power to allow double-spending. For what it's worth, I'd say I'm a bit concerned about this, but it seems many aren't. https://news.

Yes, you could abuse that power to allow double-spending. For what it's worth, I'd say I'm a bit concerned about this, but it seems many aren't. https://news.ycombinator.com/item?id=14485430 https://news.ycombinator.com/item?id=14485430