alt Hacker NewsAs someone who is a penetration tester, I can assure you that this is a TERRIBLE idea. Look up "CWE-200". While you are correct that this might help someone fix an issue, I can assure you it will help MANY more people to understand the technology stack you are working with and allow them to exploit unpatched vulnerabilities in your tech stack.
And all these years I was told security through obscurity wasn't a thing...
I work on desktop applications. Tech stack is visible to anyone who can see the error message.
If you got a web-based SaaS sure I understand your position, but then you spit all that good stuff into a log and have the error message include the relevant log ids so support can easily find it. If something bad happens while loading a file, include the filename in the logs, and so on.