For what reasons would you consider deleting a comment on one of your questions?

I am fine if people write a comment I don’t agree with as long as it is written not harshly.

For example I do believe in god.

If another GaG user writes “I don’t believe in God.” I think a comment like this is fine.

If another GaG user wrote “People who believe in god are retards.” I would delete this comment because I think it sounds too offensive and harsh.
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Even though I don’t agree with the comment “I don’t believe in God”
I still think it doesn’t sound like it is written in an insulting way so I wouldn’t delete a comment like this.

For what reasons would you consider deleting a comment on one of your questions?
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