I’ve been programming for a long time and I’ve had countless arguments about different things. I’d like to list top four reasons I’ve had an argument online.  Style guide. Thankfully, the number of arguments reduces as I mature, but I’m still spending a lot of time on them. I’d rather have an extremely opinionated styleguide and just stop talking about it. Something like wemake-python-styleguide, but for Ruby.  Monads. I have to admit that this word is almost banned from my vocabulary because of how many arguments I’ve had about it. It’s getting better, but people still like to argue about them. I wrote an article recently about them in hope to show that there’s nothing special to argue about – monads are just abstractions that may or may not be helpful. It all depends on your problems and approaches.  How to design domain logic. It may be an extremely interesting and helpful discussion, or it may turn into a useless argument. When it goes bad, it’s usually because we’re trying to discuss insignificant details…