Facebook adds 5 divs, 9 spans and 30 CSS classes to every post in the timeline

I read it somewhere that Chinese websites are taking this kind of obfuscations to the next level. The simple ones are randomly ordered divs re-layouted by JS at runtime. The complicated ones include custom font files which characters and glyph don't match, so for example <div style="font-family:custom-font">abc</div> would look like "123".

The font one seems like it's pushing it too far even for regular users since it breaks copy and paste.

Also this all seems like it would break accessibility regulations.