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I'm finding such cases recently, especially when going through my history of Low Quality Posts, I found that many answers that were:
- flagged as Very Low Quality
are totally, and maybe dangerously wrong, but try to answer the question (a), or are wrong and buried in irrevelant content (b, rather rare)
- are not spam or rude/offensive, and/or should not be deleted as not an answer
- and got deleted
Many answers in the review queue got a lot of recommend deletion votes. Though there is no recommend deletion reason about partially or totally wrong answers.
Wrong answers should not be deleted except the most extreme cases; We have downvotes for dealing with wrong answers. To conclude, this is my proposal:
Do not delete wrong answers, even if they are mis-worded. There have been some meta posts about this, but still, this happens.
In really extreme cases (a big part of cases b) described above), delete answers that are literally totally and/or dangerously wrong, really bad-worded and mis-speled, are full of irrelevant content or spam, and possibly are in between other answers (got upvoted).