Currently, I have 7 email addresses, and now I am leaning towards maintaining only 2 email addresses, 1st for my primary communications needs (the one with my domain), and 2nd as the back-up/secondary address for communications with my domain registrar, email service provider, and other such systems.
You may call it laziness or being bratty, but, honestly, I am really tired of having more than 1 email address for my online identities.
Also, the Google Suite charges for a single mailbox are quite affordable, and given the add-on features like SPAM protection and large mailbox size, are very desirable.
For those programmers who are weak at math and trying to figure out just how much and what kind of math is required to get started with programming or get better at it.