[vmasto]

The technique is called "windowing" and it's not extremely hard to implement properly. For react we have react-virtualized and react-window, and I'm sure there are other libraries for different UI frameworks.

I'm running infinite scroll in production serving thousands of photos and it works pretty well, constant 60fps, low memory consumption and you could literally scroll infinitely (given infinite content).

[minitech]

You have to be careful about which types of content you remove, though, to avoid breaking the browser’s Find. (Reddit is an example of a site that currently does this wrong.)

[delecti]

I spent a lot of time on Reddit and have never seen infinite scroll on it except when I had the 3rd party plugin "Reddit Enhancement Suite" installed. Is it in the new layout they pushed out recently, or do you have RES installed?

[joshpearson]

Do you know of any sites that do it correctly?

I've created various pages that sorta unrenders content, but all of them break the browser's find.