In most cases, you aren’t the only person working on the same project or codebase. That means that other people get to read your code and have to understand it. That’s also true for the code comments you leave behind. Developers often write ‘quick and dirty’ comments without much context, leaving other developers clueless about what you’re trying to say. It’s a bad practice that creates only more confusion than clarifies things.
So, yes – you should be bothered with writing meaningful code comments to help other developers. A code comment that describes the function, the reasoning behind the function, and its input and output will speed up the learning process of other developers. Especially for junior developers, this information comes in handy when learning the code.