By "make the world population less" he means giving birth-control and sex education to those in developing countries, not killing off the people who already exist.
My SEO ranks are always the best when I use WordPress, and I'm in eCommerce so it's important to me. Haven't been able to get the same results with Shopify, but I am actually currently moving a $1m/year site from WooCommerce to Shopify, and 50%+ of traffic comes from organic search, so hoping there isn't too much long-term damage from google with the transition. The founder really wants to move to Shopify being the reason.
If you want to see a real Decentralized Central Bank I highly recommend digging into SORA Network.
It's a self-funded project by the founder (No VC's, No ICO, No Presale, etc.) with a fair launch and the team has already developed a live central bank digital currency called Bakong in Cambodia.