I'm afraid the answer to this would be a series of books longer than A Song of Fire and Ice, which would get negative reviews for missing so much out.
Yes, we can share, but I doubt any of us has the time or will to tell all the stories. We can start with "download, install, add some users" as the basic one, but every installation then has a story following that which is different to the others.
I think this is too wide a question to be asked in a forum like this. Here, you would be better off asking more specific questions, ones we can answer without essays. To answer your question, I would reach out in other ways. Have a look at the stories people have published across the web, look at the Summit recap videos, go to Atlassian Events near you, get to a Summit or Team Tour and ask people there. (I cannot recommend the Atlassian Events enough - they're fantastic for finding other Atlassian users who are happy to talk!)
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