Until you try to send emails from your random TLD domain and they all end up in spam.
Or when your shitty TLD has a NIC-level DNS outage. (.club had one a few weeks ago for instance, experienced it firsthand.) Or no outage, but resolves slowly.
One owns the other. Useful for running multiple experiments at once, though shifting to a different structure is better (imho) if the experiment is succesful.
Until you try to send emails from your random TLD domain and they all end up in spam.
Or when your shitty TLD has a NIC-level DNS outage. (.club had one a few weeks ago for instance, experienced it firsthand.) Or no outage, but resolves slowly.