I fail to see how she turned it into a gender issue with those words. She's a woman and she's entitled to the use of the correct pronoun. Do you wish she had written "I won't be the nice guy anymore"? That would have sounded ridiculous.

Please note that when she points out Linus' behaviour, it is not because she got flamed. She did not get yelled at. The whole issue has nothing to do with her sex.

You are trying to turn it into a gender issue, which it is not - regardless of Sarah's stances on that matter.