I think you're overestimating how much effort the average adversary will put in to find this information. Sure, some will hunt you down and try and find you via real life databases like home ownership records. But many will just hope they can take advantage of easily found information like WHOIS records, in the same way many burglars just hope a doors been left unlocked or a window left open.

Unless someone's gotten into a fight with 4chan or Kiwi Farms, the chances of someone actually hunting them down like an internet detective is pretty slim.