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      <p style="margin: 1.2em 0px ! important;">For me the convenience
        of <code style="font-size: 0.85em; font-family: Consolas,Inconsolata,Courier,monospace;margin: 0px 0.15em; padding: 0px 0.3em; white-space: pre-wrap; border: 1px solid rgb(234, 234, 234); background-color: rgb(248, 248, 248); border-radius: 3px; display: inline;">for_</code>
        (without having to use <code style="font-size: 0.85em; font-family: Consolas,Inconsolata,Courier,monospace;margin: 0px 0.15em; padding: 0px 0.3em; white-space: pre-wrap; border: 1px solid rgb(234, 234, 234); background-color: rgb(248, 248, 248); border-radius: 3px; display: inline;">void</code>)
        is more important than increased safety, but I accept that
        others’ needs are different – sometimes avoiding such nasty
        surprises is incredibly important, sometimes not so, and it
        depends both on the developer and the project.<br>
      </p>
      <p style="margin: 1.2em 0px ! important;">In an ideal world it’d
        probably be an optional warning (which I’d be able to disable,
        just like I do with <code style="font-size: 0.85em; font-family: Consolas,Inconsolata,Courier,monospace;margin: 0px 0.15em; padding: 0px 0.3em; white-space: pre-wrap; border: 1px solid rgb(234, 234, 234); background-color: rgb(248, 248, 248); border-radius: 3px; display: inline;">fwarn-unused-do-bind</code>),
        but I have no idea how hard it would be to implement and I can't
        imagine how it might look anyway.<br>
      </p>
      <p style="margin: 1.2em 0px ! important;">Bottom line: if it will
        result in an error and not a warning (i.e. changing the type of
        <code style="font-size: 0.85em; font-family: Consolas,Inconsolata,Courier,monospace;margin: 0px 0.15em; padding: 0px 0.3em; white-space: pre-wrap; border: 1px solid rgb(234, 234, 234); background-color: rgb(248, 248, 248); border-radius: 3px; display: inline;">mapM_</code>/<code style="font-size: 0.85em; font-family: Consolas,Inconsolata,Courier,monospace;margin: 0px 0.15em; padding: 0px 0.3em; white-space: pre-wrap; border: 1px solid rgb(234, 234, 234); background-color: rgb(248, 248, 248); border-radius: 3px; display: inline;">forM_</code>/<code style="font-size: 0.85em; font-family: Consolas,Inconsolata,Courier,monospace;margin: 0px 0.15em; padding: 0px 0.3em; white-space: pre-wrap; border: 1px solid rgb(234, 234, 234); background-color: rgb(248, 248, 248); border-radius: 3px; display: inline;">for_</code>,
        as originally proposed), I’m mildly against this idea.<br>
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