[crimsonzagar]

The question is why would I want to print a mail or even do this? Printing on physical paper at destination is similar to printing on a printer on the network, right ... is there something else to it that I am missing?

Why can't it all be done purely on the web itself?

[chris_mahan]

A lot of people in the world don't have/don't want computers. A lot of people like stuff printed and prefer printed stuff over emailed stuff (for example, I request my Wells Fargo Brokerage monthly statements on paper, because I want to keep them in print, and I have the computers, printers, and the money to do it myself but prefer not to).

Email gets eaten by spam filters, but snail-mail does not.

Physical mail does provide for a better level of privacy than email, although that is somewhat lessened by using a third-party to do the sending.

The IRS does not read physical mail not addressed to them without a warrant (that we know of).