Well, the point is that traditional display technology had limited spatial resolution, which is exactly why algorithms like subpixel rendering were created — to

Well, the point is that traditional display technology had limited spatial resolution, which is exactly why algorithms like subpixel rendering were created — to improve the visual fidelity of text on an imperfect screen. The algorithms themselves are not without drawbacks — sensitivity to background colors, implementation complexity, caching cost, scalability etc. If the spatial resolution of the display is high enough that the font looks smooth with "normal" rendering, why bother with complex workarounds?