View-source is a great resource for learning html/js/css, but at the same time, I think the quality of references for html have improved. When view-source was t

View-source is a great resource for learning html/js/css, but at the same time, I think the quality of references for html have improved. When view-source was the most critical - in the early years - there wasn't a site like w3schools is now to allow anyone to easily learn html syntax and rules. It'd still be a horrible thing for the webdev community to lose/throw-away the ability to view the source of any site, but I don't think the effect would be quite as bad as it would have been ~20 years ago.