Thank you! I would now go on this blog every day!…

Sure, you can change a name in sed. But that’s missing the problem completely.

The problem is when you have an ambiguous name, different team members develop against their own, sometimes mismatching, ideas of what that name represents. Let’s say I name a variable setView.

To Adam, it means set the current view.

To Bosco, it means a set of views.

To Joe, it means a fixed, static view that cannot be changed.

This example is deliberately contrived to make the problem more obvious. In real life, the names are not as glaringly bad, and the differences in interpretation are more subtle, but they are still there.

Then each developer writes code with their own idea in mind. And when Joe looks at Adam’s code, it kind of makes sense, but seems strange, but Joe brushes it off, wanting to worry about his own stuff. The code diverges and pretty soon you have something sed won’t help with.