Why would cilantro taste soapy?

It is genetic. Does the same to me. ☹

People that hate cilantro share a group of olfactory-receptor Gene's, called OR6A2 that pick up the smell of aldehyde chemicals. Aldehyde chemicals are found in cilantro and soap.

Someone washed the greens too thoroughly?

its a genetic thing, they inherited an allele that makes it taste soapy

That's what you guys call coriander, isn't it?

To me, it tastes like dog breath smells. 🤢

mine tastes peppery . ☺