This is why you have collaboration software such as Atlassian's Confluence, Jira, etc. The questions get posted to the collaboration site, linked with the code

This is why you have collaboration software such as Atlassian's Confluence, Jira, etc. The questions get posted to the collaboration site, linked with the code under review, and developers can find answers to questions that have already been asked. Even better, as the questions get answered you can have more tests in the codebase so the developers can find the answers before they ask the questions. You do raise the interesting issue conveniently left out of the original article though: if you put 100 couples onto "Project Baby", you have a very high chance of getting multiple babies even when you only wanted one.