Don't even dare to put developers into the sysadmin bucket. Some have a clue as to what it takes to install, configure, and maintain infrastructure. Most do not. So please, don't cheapen our work any more by saying that.
Exactly this. When you make developers do sysadmin work you end up with networks and infrastructure the likes of which I have spent most of my career cleaning up:
Poorly or undocumented installs.
Critical services running on someones laptop,
Root logins enabled.
Cabling to cause nightmares.
Servers installed on an old desktop stuffed under a desk.
No centralised user authentication.
Crap P@55w0rd5 for privileged users on servers.
Unauthorised/unsecured Wifi access points.
Active user accounts for people who left years ago.
Passwords stored in internet accessible wiki.
Too many others to mention.