Excellent article Meydad! Just like you, I am always looking for industrial design communities to join. I think Industrial Designers should learn to build groups, forums and teams just like UX/UI designers and developers do. The amount of information you can find about UI and UX interactions, trends, patterns and updates is copious. On the other hand, few are the industrial designers who share their knowledge on platforms such as medium.
I personally admire the work of Rob Curedale who has built a significant network on LinkedIn, and he is always publishing articles and answering questions about industrial-related topics. Maybe we can do something similar here on Medium.
Thanks again for the article!