Possibly allows governments which yield a central bank to slowly fade back, allowing public servants to age out of positions instead of being terminated all at once.

Slowly transitions countries back to transparent taxation. As countries holding btc may not want to hinder btc usage in order to promote price growth.

Maybe there's two categories here, governments who can print their own currency and those who cannot.

Governments that print, can both tax and steal the spread between their desired inflation rate and deflation. They would have to give up majority of their power holding btc.

Governments that do not use their own currency and switch to operating on btc might gain some ratio/equivalent amount of taxation, as the tax base begins to see the effects of deflation. The population becomes wealthy in return the state gains a larger tax base who they can tax transparently, still theft....