The backwards compatibility isn't a testament for POSIX's merit. Sure, please introduce better, safer paradigms whenever you set standards, but enabling legacy software to run immediately is a great value proposition.
Also, goading legacy maintainers to adopt the newer, safer paradigms is likely more effective if you show them the traction the new platform is gaining
Also, goading legacy maintainers to adopt the newer, safer paradigms is likely more effective if you show them the traction the new platform is gaining