As I wrote:
But some spam actors deliberately compared zone file editions to single out additions, and then harass the owners of newly registered domains, both by e-mail and phone.
If that is a serious concern, stop whois.
There are various ways, such as crawling the web, to enumerate domain names. For example, large companies such as google can obtain enumerated list of all the current most active domains in the world, which can, then, be used to access whois. Hiding DNS zone information from public is beneficial to powerful entities such as google. As such
A wrench can be a tool or a weapon, depending on how one uses it.
The wrench is whois.
However, something like trust banks may be able to hide privacy of domain name owners if such entities can be regulated properly for people who want some privacy. Masataka Ohta