Free keys for Happ — what you are actually getting

Where they come from

Public keys have three usual origins, and they behave differently.

Someone’s spare capacity

A person renting a server shares access with a channel or a repository. It works until the bill arrives or the capacity runs out.

Demonstration access from a service

A provider publishes a limited link to show what they offer. These are the most stable of the three and also the most limited — small traffic allowances, short expiry.

Aggregated lists

Repositories and channels that collect whatever is currently working from everywhere else. The list churns constantly because its contents are other people’s servers, harvested without arrangement.

Why they stop

The failure mode is almost always the same. A key gets posted somewhere popular, enough people import it that the server saturates, and the owner either shuts it down or rotates the credentials. The key that “stopped working” did not break — it got found.

This is also why re-copying it does not help, and why a key that works for someone else in a comment thread may be dead by the time you paste it.

What you are trading

Not money — attention and predictability.

Time

Finding, testing and replacing keys is an ongoing task. People who rely on public keys spend a real amount of time on maintenance.

Speed

Shared servers are shared. Peak hours are noticeably worse.

Knowing who is on the other end

The operator of the server your traffic passes through can see technical details of your connections. That is inherent to the arrangement, not a claim about any particular operator. It is a good reason to keep banking, work accounts and anything sensitive off servers whose owner you cannot name.

If you are going to use them anyway

Reasonable, if the stakes are low. Two things make it less painful:

Keep more than one imported. When a server goes quiet, switching entries takes a second, whereas hunting for a replacement takes an evening.

Learn the error messages. Most of the time a public key fails for a boring mechanical reason — a truncated string, a link copied out of a chat — rather than because the server is gone. The errors page tells you which is which, and it saves discarding keys that were fine.

When free stops being worth it

The honest dividing line is whether you need it to work at a specific moment. For casual use, a public key that stops working now and then is an acceptable annoyance. If something depends on it — a call, a deadline, travel — then the maintenance cost is no longer a bargain.

At that point a paid subscription is the straightforward option: a link with an expiry date you can see and someone to ask when it breaks.