> ... because PSR postures itself as a normative standard

No! PSR creates so-called standards for *interoperability between frameworks*, they never aimed to impose a standard for every PHP developer or define what *good code* is. You don't *have* to comply, as a consumer of these PHP frameworks, directly to this standard.

But the fact is, as a developer, you **will** benefit from these libraries having followed the standard and providing you with highly consistent, interoperable packages.

Anyway, we're digressing and making this page longer and less readable than it should be.

@mtdowling , keep up the good work (and the `StreamInterface` :+1:)!