The problem with not using a cloak was that you'd stand a very real chance of getting DDoS'd or, worse, outright hacked (made easier by the fact that in ye olde modem days, your computer was directly exposed to the Internet with no firewall/NAT to protect you), and even with using a cloak and a NAT router you'd still have trolls sending "DCC SEND" [1] into channels, immediately yeeting a bunch of people with old shoddy middleboxes.
Libera has a policy of just handing them out (to anyone that registers)
> Accounts registered after March 2024 that have a verified email address are automatically assigned a generic user cloak. If your account does not currently have a cloak, you may contact staff to receive one.