Why Every Site Asks for an Address
position: 24
The address field has spread to places it has no business being. Understanding why makes it much easier to decide, in the second before you type, whether this particular site deserves something permanent.
The reasons, roughly in order of honesty
It needs to reach you later. A shop with your order, a service holding your files, anything with a password to reset. Entirely legitimate, and these are the cases where a real address belongs.
It wants to identify you across visits. An address is a stable identifier that survives cleared cookies and new devices. Useful to the site, and occasionally to you.
It wants to market to you. The dominant reason. An address is the cheapest channel a company has, and unlike advertising it does not have to be paid for again each time.
It is measuring conversion. Somebody is judged on how many addresses the site collects this quarter. The field exists because of that target, not because anyone will write to you.
It intends to sell or share the list. Common enough to assume it by default unless you know otherwise. The phrase to look for in a privacy policy is "partners", a category with no fixed membership.
Nobody asked why. The form template had the field, and removing it required a decision nobody wanted to make.
How to tell which you are facing
Does the site hold anything of yours? An order, a file, an account, a booking. If yes, it needs a real address, and giving it a disposable one will cause you problems later.
Is the address required before you see anything? A wall in front of content is collecting contacts, not enabling a service.
Is the value one time? A code, a download, a single article. One time value deserves a one time address.
Would you notice if it never wrote to you again? If the answer is no, that settles it.
The three tier habit
People who deal with this well tend to converge on the same arrangement without ever planning it.
A real address for actual correspondence: people, employers, banks, doctors. Small, stable, and rarely handed out.
A permanent alias for services worth keeping but not worth trusting forever: shops, subscriptions, tools. Can be switched off individually when a company becomes tiresome or careless.
A disposable address for everything else, which is most of the web.
The classification takes a second at signup, and it is the difference between an inbox that stays manageable and one that requires archaeology.
What changes if everybody does this
Companies whose entire model is collecting addresses will notice, and some already have. That is why blocklists exist, why some sites demand a phone number instead, and why others have started requiring a login from a large provider.
The underlying pressure is real: the web decided that attention should be paid for with contact details, and a great deal of infrastructure now depends on that bargain. Declining it politely, one form at a time, is a reasonable position to take, and it is one you can act on without any effort beyond noticing.