Website uwuizer script, enter in your browser console or make a browser extension with it :P Define custom selectors to uwuize in the `URIs` object by matching the key as the page URL hostname

generic-uwuizer.js

var SELECTOR = 'span, p, b, a'

document.querySelectorAll(SELECTOR)
  .forEach(el => {
    el.innerText = el.innerText.replace(/l|r/gm, 'w'); 
    return el
  })

targeted-uwuizer.js

var SELECTOR = null
var HOSTNAME = window.location.hostname

var URIs = {
  'facebook.com': '[aria-label="Comment"] [data-hovercard] + span span span',
}

Object.keys(URIs)
  .some((label) => {
    let REGEX = new RegExp(label)

    if (URIs.hasOwnProperty(label) && HOSTNAME.match(REGEX)) { 
      SELECTOR = URIs[label]
      return true
    }
  })

document.querySelectorAll(SELECTOR)
  .forEach(el => {
    el.innerText = el.innerText.replace(/l|r/gm, 'w'); 
    return el
  })