Snail Mail Sign-Ups

2026-03-13

I recently came across Adrian’s post on HackerNews titled The dead Internet is not a theory anymore. It was a good read with similarly good discussions in the associated HN comments (rare, I know!). An interesting comment that stuck out to me was:

I think next step will be an isolated version of invite-only internet where you have to be physically present with your invitee to give them access.

- artemonster

This got me thinking about possible online sign-up concepts that could be 100% AI or basic bot proof. Well, at least close to 100%. Let’s say ~95%.

I couldn’t think of any clever “AI detection” setups (ignoring the fact of whether or not I could even build any of these…) that could ever beat the simplicity of a sign-up system running through good ol’ snail mail.

Let me showcase the general idea.

The Concept

  1. A community or software product exists that requires users to create an account in order to use / interact with others
  2. On the sign-up page, the potential user is shown a PO Box mailing address with instructions along the lines of:

“Interested in signing up?

Write down the email you wish to have associated with your account on a piece of paper and send that to us at the provided mailing address. Once we have received the letter, you will be sent a confirmation email, including temporary login details, to the address you provided in your letter.

From there, you can login and configure your account as normal.”

Pros & Cons

Pros

  1. At the time of writing, AI agents and bots can’t write by-hand and send out physical mail
  2. Users who go through this process are most likely very interested in your product / community (potential power users?)
  3. Makes the entire process a little more “grassroots” or personal. Feels like writing a letter to a pen-pal or friend!

Cons

  1. Users may not have the patience to wait for the mail to arrive at the destination (lack of instant gratification)
  2. Users might not trust sending mail with their own return address (for carriers that require this)

I find the first negative point could be offset by allowing the user to log into a generic “demo” account for a product, or allow them to browse a forum/community they are interested in before committing. The second point is a little more challenging and I can understand the privacy concerns.

Practicality

I realize that this concept is a little silly. It’s clearly not a practical way to run a business in 2026. But for a small online community or niche tech forum? Maybe it could work just fine…