Their follow-up:

I have written to Haier to try to get some clarification and perhaps an agreement. I hope Haier will listen to us now that so many people are supporting us. Thank you all!

Dear Haier team,

you have probably noticed that my announcement to delete the plugin has met with a lot of displeasure from the community. There are a number of people who bought your appliances not only because of the good price/performance ratio, but also because they can be integrated into home assistant.

I think it would be helpful to the discussion if you could explain the following questions:

   Please provide details of WHICH clauses of terms of service does this project violate?
   What is an unauthorized manner?  
   What significant economic harm is being faced by the company? (in terms of dollar figures)
   When did these projects violate your intellectual property?

I'm sorry if some people have gone over the top, but this doesn't have to escalate and there doesn't have to be a bad reputation for your brand in the open source community.

Can we find a common solution here? Can I do something to make the plugins use the API more economically? Should we reduce the polling? I would like to release a new version that uses the API in a way that does not harm your business. You can also consider an official home assistant integration, the home assistant guys would like to get in touch with you for that. This would be a great competitive advantage within the smart home community.

I hope to get an answer and until then I'll leave the repos online.

Andre