That still means you are using gender stereotypes to not have to bother to state that you are male. You assume we will assume a man is not interested. It is still using gender stereotypes as a basis of your communication. This is something privileged people are prone to. It something women and minorities are less able to do. You can fail to state that you are male and just expect us to infer it because men very often have a dominant cultural position that actively fosters such behavior.