Why are the punctuation marks in modern poetry missing?

1, some modern poems have punctuation marks, and some have no punctuation marks.

2. Whether modern poetry is punctuated or not is inconclusive, and it depends entirely on the author's wishes. For example, Xu Zhimo's poems generally have punctuation marks, while Ai Qing's poems have punctuation marks.

3. The form of modern poetry is arranged in lines, even if there are no punctuation marks, it will not affect the expression.