>>Just like you shouldn't try to use innuendo and hinting to get at secret things when sitting in a public space<< social ettiquette does this, yes its nice to

>>Just like you shouldn't try to use innuendo and hinting to get at secret things when sitting in a public space<< social ettiquette does this, yes its nice to be among other people not behaving like savages, but its often hinting such as "excuse me theres only 3 of those left, and theres 3 of us in line" the idea of crypto in some form isnt to keep it secret forever, just to keep it secret for long enough that the info is not germaine to adversarial action, so out of date that it cant be used expediently. That means dont assume your cipher is unbreakable, and dont TX things that stay hot for a long time, such as crimes. lewd groups were mentioned elsewhere and that has a big issue of facilitation of obvious crime and where to drop the line between consenting adults, and abuse.