Server Management
Their server management costs extremely expensive. Lets start from the beginning. So first they need to get their server setup by getting an operating server. Almost all big companies like Google or Twitter use professional equipment for their servers and want them updated as possible so they use Linux. Linux is mainly used by servers, only about 2% of servers use windows server 2016.
server glitches/bugs/problems
What do they do when one of their server breaks down, has a glitch and stops working, or has a bug? Well if one of their server breaks down they would need to find where that server is. Today's technology will show your right away when a server breaks down and which one it is. Once they find that specific server the would need to fix it ASAP because if they don't a lot of things may go missing to users. If they have a glitch and they find out about it people have to get to work right away to try and fix it. The same thing goes for if there's a bug, their team would need to find it or someone reports it to them and they'll go to fixing it.