Blender Market - problems

One of my biggest complaints about Blender Market is not knowing if a certain add-on is still supported. I'll spend $100 on an add-on, only to find out that the developer has lost interest in Blender and stopped supporting it.

Why can't they keep a list of developers that are committed to the platform, and pledge to continue providing regular updates for future Blender releases?

If a developer decides to stop supporting their products, they should mention that in their listings so people don't buy thinking that they'll get support and updates over the years.