[oxfordmale]

StackOverlow doesn't run on just 4 machines. Even in 2016 it required significant hardware:

4 Microsoft SQL Servers (new hardware for 2 of them) 11 IIS Web Servers (new hardware) 2 Redis Servers (new hardware) 3 Tag Engine servers (new hardware for 2 of the 3) 3 Elasticsearch servers (same) 4 HAProxy Load Balancers (added 2 to support CloudFlare) 2 Networks (each a Nexus 5596 Core + 2232TM Fabric Extenders, upgraded to 10Gbps everywhere) 2 Fortinet 800C Firewalls (replaced Cisco 5525-X ASAs) 2 Cisco ASR-1001 Routers (replaced Cisco 3945 Routers) 2 Cisco ASR-1001-x Routers (new!)S

[snovv_crash]

Compare this to the many companies spending 6+ figures on AWS, and ask which has more traffic.