Aside from selling one's bitcoins and buying them back later, is there a way to profit from a dropping value of Bitcoin?
why would you ask that?
Because I was responding to a post where someone challenged people who believe Bitcoin will drop in price to speculate on such an event, but to my knowledge, it isn't possible to do so.
And yeah, there is no way that someone can start writing puts options contracts - not enforceable in court, and it's too easy to start over with a new identity on here. Nobody here uses their real name anyway.