[operator-name]

In my mind there's nothing about locking editing behind account creation that would discount this in being a wiki.

[teawrecks]

Only because the wikimedia foundation isn't taking people to court over the trademark. But their original vision was/is a website that is freely editable by the audience.

[quesera]

Not sure what you're getting at.

Wikimedia Foundation did not invent the word "wiki". They were not the first to apply the word to a collaboratively edited web page. And they do not assert rights to any words that would conflict with "Wikenigma".

https://foundation.wikimedia.org/wiki/Wikimedia_trademarks

[Marazan]

Wikimedia didn't invent wikis.

In fact wikipedia has many festures that are completely against the ethos of the first wiki.