I would put it slightly differently: Patterns (including anti-patterns) happen whether you call them such or not. Any developer will sooner or later come up with patterns like Adapter or Builder or Composite or Iterator. In that sense, patterns are not invented, but discovered. The benefit of design patterns is to be able to communicate these discovered patterns, and to define agreed names for them, so that you don't have to describe the pattern each time you talk to another developer, but can refer to it by a well-understood name. (Or when not yet well-understood, can refer to the corresponding pattern description.) It extends the language we use to talk about software design.

The point of design patterns is less about the individual patterns, than about having "design pattern" as a general concept of coding patterns relevant to software design, that you name and describe because they keep reoccurring.