The name you choose

Almost nothing in a session is yours. The address was given to you, the interface is somebody else design, the order of the pages is fixed. The name is the exception, and being the exception makes it the piece most worth thinking about.

It is also the piece that persists longest. Addresses change, sessions end, interfaces are redesigned. A name chosen once tends to survive all of it, and it accumulates a history that the person who chose it did not plan.

The thing that catches people is not that a name is stolen. It is that a name is reused. Somebody picks something they like, uses it in one place, and later uses it in another because it is the name they use. Nothing was leaked, nothing was compromised, and the two places are now linked by a string somebody typed twice.

The linking does not require anybody to be looking. It only requires the name to be searchable, which every name in every public place is. That is why the advice is about uniqueness rather than about secrecy.

• Any name you have used anywhere else, however long ago and however small the other place was.
• Any name derived from something about you, including things you think are obscure.
• Any name you like enough to want to use again, which is the same failure arriving later.
• Any name that is memorable in a way that makes it feel like yours, because that feeling is what makes people reuse it.

Meaningless, unattached, generated rather than chosen, and used in exactly one place. That is an unsatisfying answer because it is a name you will not enjoy, and the enjoyment is precisely the property that causes reuse.

The same logic applies to everything adjacent to a name: a display line, a note in a profile, a phrasing you use in messages. All of it is authored by you and all of it is comparable across places. A name is just the most obvious example.

They count the words on this panel, the time it takes to read, its share of the whole board, and the length of every panel in this section as a line. That is not a coy joke, it is the only data available.

This board has no access to any account system anywhere. It cannot count names, cannot tell you what a common one looks like, and cannot say anything about how names are handled by anybody. A panel about names that showed name statistics would be showing invented numbers, so it shows the one thing it genuinely measured: itself.

A name is one identifier among several, and the others get much less attention because they are not chosen consciously. How you write, which phrases you repeat, the times you are active, the way you sign off. None of those is a name and all of them are comparable across places.

The board is not going to turn that into a checklist, because a checklist would imply completeness and this is a subject with no complete list. The useful version is a habit: keep the things you author in one place separate from the things you author in another, and notice when you are about to reuse something because it is convenient.

Does changing a name later fix a reuse?

It stops the name being used from that point. It does nothing about anywhere the old one already appears, which is usually the part that mattered.

Is a random name obviously suspicious?

It looks like a name generated by somebody who thought about it, which describes a large number of people. It is not a distinguishing feature.