[bradenb]

The idea of a completely read-only router is really interesting. I used to buy hardware that would only work with open firmware -- I used to love to constantly update and mess with DD-WRT. But in more recent years I've just started buying high-performing hardware and skipping the customization beyond SSID and passwords. With faster connections, UPNP, and decent default QoS policies I pretty much never have to configure my access points or routers anymore. I'm pretty sure the average consumer has no desire to configure anything.

[brandonsometig]

UPNP can be an absolute security nightmare however, it's the sole reason so many IP cameras, NAS drives and IOT devices are internet accessible.

It's your network of course but it would be the first thing I'd turn off.

[Jonnax]

Sure, but if I want to play a game of Mario Kart I don't want to mess around with port forwarding.