Now some attempt at elucidation.
In 1974 (I think) the NASA sent into space a probe with a plaque intended to send a message for aliens. It contained several images and symbols meant to say to aliens A) we are intelligent B) we are peaceful (an open hand), we would like to have a chat with you, here is our ID (the DNA), do you have a DNA?, it would be nice if you made your DNA known to us. The plaque was subject of much controversies at the higher echelons of NASA and in the media because of the nakedness of the humans represented. And why, among other things, send images of naked humans? Are we so attractive, especially to aliens? The woman’s genitals were progressively reduced and then abolished. The whole thing looked as sheer nonsense.
1) Why try to communicate with aliens when we have an incredible abundance of aliens here on the planet: ants, bees, albatrosses, bears, bats etc.? Do we communicate with these living beings in a decent way? We don’t even know how many species exist here. Should ants and bats in the universe be more interesting than the ones we have here?
2) We don’t succeed to communicate amiably between us humans, and even between AS and NT, and also between AS, why should we send a probe into space to communicate with an interstellar ant or bee, or bird?
3) Peaceful intentions. Why should any living being be assured of our peacefulness because of an extended hand? After all Colombo, Pizarro and Cortez probably extended hands to Incas, Aztecs, (and Stanley to Congolese blacks), when they met them for the first time.
For further reasoning about the DNA business and other things, I will make attempts in further posts if possible.
In some forums it's possible to send images. Can someone tell me how?