[supriyo-biswas]

It’s not at all uncommon.

Scrollbars can show up at weird places and not do anything at all due to UI issues, and they’re not that visible anyway in proportion to the page contents, even if we are to assume Windows 95 style scroll bars. Therefore the only indication of whether a piece of content is scrollable is its layout, and a hero taking up the entire viewport height is next to impossible to understand.

This is the reason many such pages have a “Learn more” page whose only function is to scroll the page down by one viewport height, or less commonly a pulsating arrow at the bottom that tells the user the content is scrollable.

[crabmusket]

I totally understand the point about the scroll bars, I meant to say that I habitually scroll pages, without even thinking. There's no analysis, no attention to the (hard to see) scroll bar, the intuition is always to scroll. Even when it's very clear that I'm intended to be at the bottom (e.g. I can see a conventional footer layout) it's just a reflex.

But yes, I agree with you it's undoubtedly common (enough). I was just pointing out the difference with "internet natives".