Well not entirely true. There are some websites that are literally made entirely out of flash which is horrible form. They do it because they don't even know how to code basic html. Which says a lot, in my opinion.
I can go into the list of many reasons why flash is bad as the backdrop of the website. It is one thing to use it for specific functionality, but there are whole websites that are run in flash, and that is BAD. Not just for the site, not just for the users, but for the internet. It fundamental sidetracks the interactivity and connectivity and searchability of the internet.
This is why moving back the HTML standards is important. It is what the internet is built on. Getting away from that has always been bad. People can figure out their own ways to do their sideways trickery, but for basic web publishing and design ,things like flash absolutely should not be used or favored.
Too many people have turned flash into a website development tool, which is not what it is and not how it should be used because it is horrible at that.
I didn't mean the percentage of the content in a single website is under 60%.
Someone claimed that 60% of the websites all over do use flash to display actual content. Which is of course, bogus, unless you consider the flash advertisement on top as actual content of Macrumors.com.
About the websites which consist entirely off Flash, I can't agree more. I hate when a website is made with flash. It's tough to navigate, it's always slower, even on my 8 Core machine, it's a new interface you have to learn when you visit the damn site, it's just nonsense for eyecandy. And yes, flash must go away other than flash games, which are quite cool usually and don't have anything to do with web.