And if you have to then use somethingthat has to be read & underslood like
myaccount-at-whatisp-which is a CO-omercial domain in Scotland so ends with UK
starts with myaccout ends with UK and has whatisp in the middle
You just have to make it a non recogniseable format
Down side is that only works for automated data collection and won't work against impoverished people in the 3rd world who actually read posts looking for emails & phone numbers
The other thing that works is to make a throw away account at one of the free email hosts
Something like [email protected]
then after you have finished with it delete the email account .