YAGNI is always a valid strategy but what you are and are not going to need will change with scale. An inconsequential case can turn out to be something that i

YAGNI is always a valid strategy but what you are and are not going to need will change with scale. An inconsequential case can turn out to be something that impacts several teams. At scale, rabbit holes can be quite relevant. At scale, you can no longer trust that your personal view of the org is complete enough. There's still plenty of waste but just because you don't need something doesn't mean it isn't in another team's hot loop. Best to come in with trust first and incredulity second.