While this is a personal question that only you can answer, I can describe the feelings that I get when I hear someone using logical fallacies.
First, when people employ fallacies, they usually do so in quite persuasive ways. For example, they might be very emotional while using them, or they might appeal to something that I care deeply about. Therefore, I can sometimes be initially convinced by logical fallacies.
However, upon reflection, I might realize that such thinking is a fallacy. This greatly damages my opinion of the writer or speaker. It makes me think that the person is unprepared. It also makes me wonder if the person was trying to manipulate me, or if he had some ulterior motive for conveying the information in the way that he did.