Yeah, there was some point to it back in Aristotle's day, but you can tell how much someone doesn't know about logic from the degree to which they lean on pat lists of informal fallacies. Formal fallacies, as in those produced by incorrect inference in classical logic (or an argument that can be accurately reduced to classical logic), are infinite in a similar way to how "wrong answers to math equations" is an infinite category. "Informal fallacies" are a catalogue of rhetorical tricks and cognitive biases that it is good to be aware of but which don't have very much to do with logic as a field.