I mined a bitcoin in like 2011.
And I mean… Depends what you mean by “anti”
Is it a sort of a slot machine you can make short term money off of? If you’re lucky, sure.
Is it a good investment? Eh. I’d argue holding a basket of stocks is better bang for your buck.
Is it a viable future currency to buy a soda with? Hell no.
I could go on and on about this, but I think Steam's brief experiment allowing cryptocurrency purchases speaks volumes.