Bill is one of the great person I ever meet in SEO industry. We meet at Google London Office Pubtilligence in 2018. During that time we had discussion regarding schema markup and I told about some uncertain issues my clients facing due to schema markups. He literally wrote great in depth article to tackle schema issues in e-commerce site and shared its link to me via Twitter. That really helped me to solve major webmaster issues of eCommerce site. He learn to share and discover.
Im really sad to hear that he encountered with stroke, I wish him speedy recovery and willing to see him in person when he will get fully recover.
Bill, we all are with you during your hard time. Get well soon ✌️
All best wishes from India 🇮🇳 🇺🇸