Even if i had a limited experience with it this doesn't surprise me, i still don't understand how big site can use or have used (list on openx site) this script

Even if i had a limited experience with it this doesn't surprise me, i still don't understand how big site can use or have used (list on openx site) this script to manage their own ad network. Lots of issues with the db and with the upgrade procedure, sometimes has weird issues hard to identify and solve(i.e. things that stop working without any apparent reason)... Maybe i'm too critic, but i felt it was just another crappy php app.