[domdomegg]

Thanks for reading the article! I agree it doesn't consider this point, and I actually hadn't thought of that.

Semi-empirically, I've run some websites with emails and contact forms sitting on them for 5+ years and I haven't noticed this effect. Although I must admit I haven't studied it quantitively well enough to determine this for certain - I'd love to look over the data to see if this is true. Unfortunately on all these inboxes spam is deleted automatically after some time so I no longer have records. If you do have data here, it'd be great to see someone publish this and would happily add a link to this analysis!

And theoretically, would a contact form link not also be a thing that gets added to more and more lists over time and have the same problem? (Although I also didn't notice this pattern on contact forms, so I'm not claiming this does happen - just a thought experiment on this logic!)