I don't think you need to explain everything again because I am aware of posits' strengths over IEEE 754, that's why I acknowledged that first. But as an incremental improvement from IEEE 754, posits are just not enough to justify the switch. When people need something better served by posits, they don't use posits---they use non-standard variants of IEEE 754 (e.g. FTZ/DAZ, bfloat16).