If you need to delete some previous post (due to it being unclear, dangerous advice, offensive, misinformation, poorly/confusingly worded, or a duplicate post you posted twice in a row, etc) you could ask a moderator to help you clarify the post, or delete a duplicate post. I'm sure there are some policies about this, so it might not be as simple as just asking them to delete it for you, but it's worth asking.
~angie
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