[nijave]

>but why contribute your time and effort?

From a business context it can frequently be cheaper to fix OSS (or source-available software) than pay someone in-house to write something equivalent or pay for equivalent commercial software. If you're being paid by your employer to complete a task on company time, that task uses Terraform and you encounter a Terraform bug, it seems reasonable to create a fix for it.

It gets even hairier when you consider a lot of commercial products push Terraform support (in house created providers) as a feature. I could be getting paid by Company A to implement and maintain software written by Company B where part of the implementation uses a reference architecture or install template written in Terraform.

On the other hand, I'm more reluctant to use those sorts of tools/contribute on my own time.