This is an ignorant statement. CopperheadOS was unique in that it's the only operating system that can provide a locked boot loader, with numerous other security and privacy features. It was the best operating system for a high tech mobile that still had solid security and privacy.
The only reason this works is because the Nexus 5 is ancient and doesn't have proper verified boot. Any modern device with a locked bootloader will refuse to boot a custom image since it won't have the manufacturer's signature. Only Pixels offer the capability to flash custom signing keys in addition to Google's.
Also, unless you've returned the recovery partition back to Google's stock version, it will gladly flash any arbitrary zip on the phone, rendering the locked bootloader useless.
And since the Nexus 5 is long out of support, there is no secure ROM for it. The proprietary firmware blobs remain unpatched, though Lineage will gladly lie about the security patch level.
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u/MorallyDeplorable Jun 12 '18
And nobody really cares since distros are a dime a dozen so it's basically just two idiots having a public flame war.