There are 2 types of real carbon credits, easy credits and hard credits. The easy ones are cheap things like planting trees and efficiency programs, the hard credits are expensive, carbon capture tech that we haven't perfected and will always be costly.
Poor countries are attracted to the idea of selling their cheaply attained credits for money today. And why wouldn't they? They are indebted and struggling. But it's going to fuck them over in the future when they need credits for their own carbon accounting and they're out of easy credits to make.
No hate or judgment here, it's just the next steps in how global imperialism will continue to fuck over these countries