@grrrr_shark Is it an arms race though? I agree that if we are aiming for allowing other people who have nothing to do with $NEWCOMER find $NEWCOMER, then it is an arms race -- you can only distinguish $NEWCOMER from $SPAMMER by their contents or the (possibly totally faked) network around them.

If we are aiming at allowing people to walk along the social graph, then it seems to me that we can require potential attackers to confuse an actual human to gain the initial foothold. Do you think this is also arms-raceish due to how easy it is to confuse a human?