Punctuation Or Not

[ellajam]

What's up with the dearth of parentheses. I see ellipses and hyphens all over, but parentheses seem to be avoided in most poems here. Is there something about them people feel is unsuited to poetry?

Parenthesis are avoided in poetry (though I have used them several times) there is a reason but I forget, the poet is to use a pair of em dashes. (Though sometimes I use parenthesis for a specific effect)

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Actually, this reminds me of this girl from another board who used crazy nested parentheses and brackets in her regular posts - they made them all.most I.possible to parse. I will try to find one or two tomorrow, if I forget, remind me.

Why would we make up a series of dashes when we've been given those lovely curvy things to separate a phrase.
({just to be clear} I am not [at this time] advocating excessive of (any) punctuation.)