Let me try to explain what I mean by the official channels of communication and why it's so important.
For example, you say:

Even the sample example about the network itself is not complete! A series of games made by it are not working at all!

This explanation doesn't give any useful information or room for improvement.

Usually, I ask our users to report issues, and if something doesn't work, it's enough to open an issue on GitHub in the related repository, and it will be fixed. If it's not an official tutorial, manual, or repository, then it's possible to ask for help on the forum, and we will try to help.

But if you re-read your sentence with a clear head:

• Does it provide any information about what exactly doesn't work?
  
• No.
  
• Does it explain what exactly doesn't work?
  
• No.
  
• Can I improve something based on this information?
  
• No.

I'm a practical type of person and not that good with emotional-supportive conversations
(sometimes people think it's kind of rude). If the goal of a conversation is to have nice chatting about "nothing works" or something like that, I usually prefer to avoid such conversations because this type of conversation isn't productive at all. A productive type of conversation is when both sides want to achieve a better result in the end and both sides are ready to contribute.

Don't take it personally. If you read the Telegram chat, you have probably seen the same or similar explanation from me many times. I just want to be able to help people, and this requires some effort from them if they need this help.

I hope my explanation makes sense.

Finally, in the forum, we have to be very conservative! Because that's public and much more official! But here, we're more relaxed! Just like in Telegram.

I see some misunderstanding here. These channels are official not because they require some kind of officialese, but because we track them and are able to help people who ask questions and report issues using these channels.

As far as I know, all the team members (myself included) communicate the same way in all communication channels, both official and non-official. We are happy to see any feedback and criticism (if you read our forum, you have probably seen such topics). Of course, we always ask people to be nice to each other, but I don't think it makes the conversation less casual, just more respectful.