This question already has an answer here:
I have several questions that I want to ask that I don't want to be linked back to me by the people about whom I'm asking*, who might recognize my username. There are others that would require disclosing personal information that would be just fine on its own, but that I don't want to be associated with my username.
I understand that questions can be dissociated from the OP by a moderator, but as far as I can tell that is a retroactive measure. If I know beforehand that the question is best not associated with my account, what is the best course of action?
*These are complex situations and taking the risk of them making the connection is not the right course of action.