OP was actually referring to the hype around Binance chain last year, any project which moves to binance chain immediately gets hyped and spikes up massively in price. I benefitted from this actually, even though it was short lived. I remember when many were in the opinion that Binance chain will be better than Ethereum blockchain, all of these were mere assumptions. OP wasn't necessarily referring to IEOs done on Binance exchange, since they still get hyped with remarkable price spikes like WRX, even though some dump badly after the hype dies down.