I can't think of anything that's particularly constructive to say, but I find your comment... irritating. It's likely that you are simply wrong. It sounds like

I can't think of anything that's particularly constructive to say, but I find your comment... irritating. It's likely that you are simply wrong. It sounds like you are personally upset that your creation was modified by other developers who may have more experience. If you haven't had the experience of maintaining multiple projects with some kind of consistency between them, then adding "complexity" (unit tests? really?) may seem unnecessary. I've had similar discussions/arguments with (junior) developers (or non-developers) and it's just a waste of time. If you don't have the long view, the whole discussion is moot. Now, if those other developers created an unmaintainable monster, that's orthogonal; you can do that with any framework or no framework. You will always end up either A) creating a one-off framework anyway or B) creating a nightmare of inconsistency. Edit: Also, I think it's somewhat amusing that you include jQuery right alongside vanilla JS without irony while denigrating more-modern frameworks.