I think anything that is good or feels good has that potential of affecting behavior towards it. Using the word "addict" is a cop out to take away personal responsibility. There are true addicts so it should not be used so lightly. Mark Zuckerburg is a trail blazer, creating industries which did not exist and which no one could predict the negative outcomes. Overall, I'm sure Facebook has done much more good than bad to connect people in a positive way. If it is a net gain, then it is worth fixing, even if that fix means to completely change the technology approach using some blockchain value proposition for example for social cred that is universal and lives outside the social networks themselves.