And they lack aesthetics.

Love this. Slick. Just for perspective, Alphabet agencies will still tie together all the email accounts with the same handle / custom domain, and even minor variations of such. Heck, so will data brokers. So this isn’t as hidey as some may think. You’re still connecting all your accounts, but requiring a ton of centralization for analysis to be effective. Unfortunately this centralized analysis is a real and present danger.

Example: you order something from Amazon to your home address, using Bitrefill and Amazon@youranondomain.com that you paid for with lightning. FBI and NSA now know your home address, and that all your accounts like stackernews@youranondomain.com and fatsecret@youranondomain.4wrd.cc are yours too.

Remember we’re in the age of capable neural networks and artificial intelligence, where rapid analysis of large datasets is trivial. The difference between 3 different emails and 365 is nothing, if there’s any type of connecting data—in this case the custom domain. Not saying that you must use the custom domain always.

Know what threat you’re trying to mitigate.

The main perk of this method—and really the only reason to pay any money here—is the ability to have a respectable email that is good for sharing with contacts.

What’s ugly? Custom domain is what this gives…

“With this method every account gets its own email address. A custom domain (e.g., you@yourdomain.io) allows you to create yourbank@..., yoursocialmedia@..., to infinity and beyond.”

Protecting identity AND having custom domain is actually easy.

I think the main selling point of this is the ability to have an aesthetically pleasing address for situations where this is important. @expatriotic makes this pretty clear.

Anonaddy’s free tier has unlimited standard addresses.