If there are two companies A and B, and you are convinced that A will yield a better ROI than B, you will sell B and buy A – even if there is room for B to yield a positive ROI.<p>Growth in users&#x2F;usage&#x2F;engagement in a social network almost always yields a better ROI than no&#x2F;low&#x2F;negative growth in users&#x2F;usage&#x2F;engagement.<p>Twitter does not necessarily have a monetization problem, people just want to invest their money where there is more potential.