Answer: Because the "random stuff" (plugins for VS Code and other IDEs) solves real problems and nothing bad happens most of the time.
Almost no manager will sign-off spending time on building stuff in-house if its available "for free".
This is also in no way a new thing. How much code was written in notepad++ in the '00ies? Did anyone bother to check if the plugins did sth. malicious? We also used some weird closed-src "addon" for the Nullsoft installer to get a product out of the door, dont remember what the problem was exactly....
Almost no manager will sign-off spending time on building stuff in-house if its available "for free".
This is also in no way a new thing. How much code was written in notepad++ in the '00ies? Did anyone bother to check if the plugins did sth. malicious? We also used some weird closed-src "addon" for the Nullsoft installer to get a product out of the door, dont remember what the problem was exactly....