Outside of work in the free and open source community, I find myself often wishing that I could just get a random person who has no context of the codebase to review a piece of code I've written.

Context is obviously important, but the lack of context can also highlight issues that you would be blind to if you have the context.

I would want this to exist within an ide where you could highlight code, submit for review and wait. And if you want to review you can explore pieces of code to review filtered by language within the ide.