A script for unblocking everyone on Twitter. Modified from https://lucahammer.com/2018/08/09/unblock-all-blocked-twitter-accounts-at-once/.

unblock-all-twitter.js

if (document.querySelector("h1.css-901oao > span:nth-child(1)")) {
	document.location.reload()
}
console.clear()
console.log("Script loaded!\n\nLoading...")
window.scrollBy(0, window.innerHeight)
var blockedNow = []
var totalUnblocked = 0
autoUnblock = setInterval(() => {
	blockedNow = []
	window.scrollBy(0, window.innerHeight)
	document.querySelectorAll('[aria-label="Blocked"]').forEach(account => {
		account.click()
		try {account.parentElement.parentElement.children[1].outerHTML = ""} catch(e) {}
		try {account.parentElement.parentElement.parentElement.firstChild.outerHTML = ""} catch(e) {}
		setTimeout(() => account.parentElement.parentElement.parentElement.parentElement.parentElement.parentElement.outerHTML = "", 20000)
		blockedNow.push(account.parentElement.firstChild.firstChild.firstChild.children[1].textContent.slice(1))
	});
	console.clear()
	totalUnblocked += blockedNow.length
	if (blockedNow.length) console.log(`Now unblocked ${blockedNow.length} accounts.\nA total of ${totalUnblocked} accounts have been unblocked.\n\n${blockedNow.join(", ")}\n\nLoading...`)
	else console.log(`No unblocked accounts now.\nA total of ${totalUnblocked} accounts have been unblocked.\n\nLoading...`)
	if (document.querySelector("h1.css-901oao > span:nth-child(1)")) {
		console.log("Bail out!")
		clearInterval(autoUnblock)
	}
}, 2000);