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That's not explicity true, since Twitter now offers ad revenue (and "X" will include a crypto (doge?) aspect.)

But I was referencing the user base is similar, not the projects.

Has the use of an internal currency (being crypto or other) confirmed?

It was outlined in the projected changes due to the implementation of the "X" project, and has been discussed prior to that as well. How/when it will be implemented has not been clarified to my knowledge.

I definitely have to dig deeper into the subject. Thanks for sharing