I sort of do this because I own my domain. I generally pick an annual keyword email filters can lock on, followed by an identifier with whom I’m contacting.
It’s easy to trace if addressed get breached, especially unreported breaches, and add to a burn list if they get spammed.
Also, if I have no intention of responding I give fake info or if I need that rare password reset link I know when to look in the spam.
Yeah, using my domain is it’s self a bit trackable, but enough friends and family use it I figure poisoned data is sweet justice.
Fun fact, but for some reason old fake accounts have boomed in popularity; like data brokers with bad information bounce verifications off each other, linked it to some poor sap in another state, and snowballed into an actual profile. I’m going to use that identity as an alt profile for something someday.
Source? I’d like to read that.