I don't really understand what this discussion is for!
This is a Bitcoin forum, not a USD forum, right?
Payments should always be in Bitcoin or in other cryptocurrencies (centralized tokens are not cryptocurrency!
)
And now to calm everyone down. Always, with big price changes, the rates per post or per week were adjusted, so it really doesn't matter. (Camapaign owner almost always prepare budget based on fiat, so behind the curtain it is adjusted anyway)
But when it comes to rules, in my opinion we should stay only with BTC.