What effect does informal language have on the reader?

Informal language can create a sense of familiarity and relatability, making the reader feel more connected to the author. It often conveys a casual tone that can enhance engagement and make complex ideas more accessible. However, excessive informality may also undermine the author's credibility or the seriousness of the subject matter, depending on the context. Overall, the effect largely depends on the audience and the purpose of the communication.