hn-user-names.js

// ==UserScript==
// @name        HN Prominent User Names 
// @namespace   Violentmonkey Scripts
// @grant       none
// @version     1.0
// @author      Sean T. McBeth - sean.mcbeth@gmail.com
// @description Make user names on Hacker News more prominent, so we can start to remember people.
// @match        https://news.ycombinator.com/*
// ==/UserScript==
'use strict';

function setFont(user) {
  user.style.fontSize = "150%";
  user.style.color = "black";
}

[...document.querySelectorAll("#hnmain > tbody > tr:nth-child(3) > td > table > tbody > tr")]
  .filter(e=>e.className == "athing")
  .map(e => [e, e.nextSibling])
  .forEach((post) => {
    var [title, meta] = post;
    if(meta && meta.querySelector){
      var user = meta.querySelector(".hnuser");
      if(user){
        user.parentElement.removeChild(user);
        var cell = title.children[0];
        cell.innerHTML = "";
        cell.appendChild(user);
        setFont(user);
      }
    }
  });

[...document.querySelectorAll(".comment-tree a.hnuser")]
  .forEach(setFont);


[...document.querySelectorAll(".comhead a.hnuser")]
  .forEach(setFont);