By design, why is it necessary to specify parameter names when declaring a delegate type?

Question

Why should we indicate the parameter name xas follows

public delegate void XXX(int x);

when declaring a delegate type?

For me, the parameter name is xnot used, so it will be easier if we can rewrite it as follows:

public delegate void XXX(int);

Please let me know why the C # developer "forced" to specify parameter names.

Edit1:

Is public delegate TResult Func<T1,TResult>(T1 arg1)more readable than public delegate TResult Func<T1,TResult>(T1)?

Answer 1

Used by:

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Action<int> .

Answer 2

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?

public delegate void EventHandler(object source, EventArgs e);

public delegate void EventHandler(object, EventArgs);