It is like donating a goose laying golden eggs

If anyone had such a strategy, they would keep their mouth shut about it. And they definitely wouldn't be bragging about their profits. That essentially answers your question. People who claim that they were able to multiply their investments like 10-100x are either massively exaggerating their real successes or they were just extremely lucky to first get in on time and then get out just in time

The bottom line is, take anything that you hear about someone earning insane amounts of dough with a bag of salt as reality may be not as rosy as it is being described