Gotta say, my experience has been vastly different from this author’s. I have several domains, each with a catchall address, plus I use annual throwaways and specific ones for frequent (or suspect) correspondents. It has enabled me to block spam to leaked addresses, know who to smack upside the head for leaking them, and change the address I use with just that one idiot at a time, without having to change the address I use with everybody. I think the author might just not be using the concept very well.
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