Even allowing for translation issues, I have difficuties to understand what you talk about. Please use a translator page and backtranslate what you wrote into your own language and check if that sounds incomprehensible to you too.
Also you answered to my reply to another thing, instead of my reply to you, where I did talk about things you refer to in a way that makes me think you did not read that other reply.
The moderator does not work for Itch. He is not the operator of this message board. This message board, the itch community, is a user message board. Not a tech support message board. It is users talking to each other. So do not expect official statemens of any kind. The founder of Itch sometimes posts in this board as well. But no "official" statement about reasons or plans in regard to any exclusion features so far. And there is no habit of talking about internal information, plans and roadmaps, so this is not anything unusual.
Rather, if there is a certain exclusion function by notice, I may not know, but unless there is,
I can only say that the system itself is wrong to be honest.
Please. Translate this back and forth. What do you mean? I do not understand.
You would like that feature. I got that. But what is wrong about the situation? I asked the people discussing in the threads about this topics several times about other game hosting sites with exclusion features. I could not find any. And no one gave me an example. There is one exception, and that is "Steam". And their tag exclusion is hidden away. I used the site for many, many years without ever noticing that feature's existence.
It just is not a common feature. So what is "wrong" about not having this feature?
My major is superconductor. So someone else asks me about superconductors, do you really think the answer is the right one to answer that I've been asked a lot about superconductors?
But we would not ask you! We would discuss about the topic at a site where you would not answer such questions at all, even if you were to read and sometimes post there.
If this were are more technical message board, there would be a rule about people having to use the search function of the board, before opening a new thread. And any threads opened that demonstrate that this was not done would be closed. But as I said above, this is not a technical support message board. It is users talking to users. No one qualified will answer here (most of the time). All we can tell you, as fellow users, is, that there is no official answer about reasons why this feature does not exist. And we can talk about how to cope with the lack of that feature.