In some ways that might be an advantage. More people are going through the growing pains associated with tens of millions of people using their site and reques

In some ways that might be an advantage. More people are going through the growing pains associated with tens of millions of people using their site and request-per-second and data size problems, and making trade-offs for that providing service at that scale. Jumping to Facebook's current architecture and taking on the trade-offs taken there (assuming you even have a problem where those trade-offs make sense at massive scale) is probably not the right thing to do when you are much smaller (in terms of requests/traffic/load, servers, and employees).