Individual account signup date is an unreliable proxy for lifetime HN experience :^)

Further, https://news.ycombinator.com/item?id=47340079 suggests HN is facing a sea change unlike any past fad (Big Data, VR/AR, NFT, Web3, ...). Due to Brandolini's law, it cannot simply be disregarded with the "semi-noob illusion as old as the hills" cudgel.