Personal finance guru and Ramsey Solutions CEO Dave Ramsey weighed in on the implosion of cryptocurrency exchange FTX in a Dave Ramsey Show episode, published Friday.

Referencing his warning about crypto, the self-proclaimed personal finance expert said “I told you so” several times during his show that was published Friday. He recalled:

I got so much crap from the Bitcoin bros … They are pretty much like Mary Kay for young men … They can’t listen to anything. Their brains are turned off if you’re not going to do their thing.

Ramsey added that every time he advised, “don’t do crypto,” he got flooded with responses like “I’m an idiot. I’m a boomer. I’m out of touch. I don’t understand.”