In principle, sure. But in practice for many politicians, sending a letter will receive a copy-pasted reply while replying on twitter might get you a personal r

In principle, sure. But in practice for many politicians, sending a letter will receive a copy-pasted reply while replying on twitter might get you a personal response. Similarly, getting kicked off Instagram will cause many businesses to die, despite there being another dozen sites where you can upload pictures. Social networks have an inherent tendency to monopolise niches, even if those niches are hard to articulate.