Typically: Investment is long term. Speculation is short. Investment is looking for a gradual return over time. Speculation is betting on price.

I've been long on crypto since 2013, I'm not a crypto day trader, and I'm well aware of DeFi. I consider that an investment, not speculation.

Let people treat things the way they want to. All of the people who want to stick with Vanguard and their position are free to do so.