Fade in in scroll will always be slower than the reading speed of a significant percentage of population.

This becomes worse for people who just skim content, re-read the text, or want to quickly scroll to a specific place in text

▲ jonas21 5 hours ago | parent [-]

It can speed up the loading of the above-the-fold content because the images on the rest of the page can be loaded as the user scrolls closer to them.

	▲	talim 4 hours ago \| parent \| next [-]
		You can do this with just the 'loading' attribute on img elements and let the browser handle it without the gratuitous animations: `<img loading="lazy" src="image.jpg" alt="..." />`
	▲	knorker 5 hours ago \| parent \| prev [-]
		So you agree that for text, it should NEVER be used. And you are only arguing for lazy loading of images?