One of my soapboxes is that the world is full of really smart people trying to solve solved problems for the sake of having done something that feels like something. I advocate for people taking that creative energy and pointing it at partially/poorly/un- solved problems.

If that's developing to offer (OP in particualrly said their friend would soon be offering a new service) an RSS Reader because there's something to actually innovate and more fully solve a problem, then it's great. Otherwise, it's just fodder for AdWords and Facebook when they eventually try to build acquisition for a business around it.