The FAQ used to say that WA and NV residents could not participate in PredictIt markets, but this text was removed a few weeks ago. Is it now legal in all fifty US states?

Why would it not be legal in Nevada? They are one of the two U.S. states that have legal gambling..

Nevada has big local businesses in gambling and is, therefore, very negative to all forms of online gambling.

All 50 states have been approved at this point.