On the contrary, the above saves a lot of time for people like me who dabble in multiple sites.
Also, it takes off the extra layer of clutter built up by clogging your sites with plugins. You never know what code is run in the backend of these plugins or when there may be a vulnerability for one.
Also, if you know what you're doing, hard coding the ad takes precisely 3 to 4 minutes. It's not some rocket science.
