"I like Facebook, I use it often. $365B... for a message board. Yes, I use it. Yes, I think it is useful. Yes, I think this valuation is absolutely crazy."

Not many todo lists have millions of users, including some that pay actual money for the service. Having looked at many project management tools, Trello has absolutely nailed certain aspects of the user experience that many of the others get wrong. Try pasting an image into a card, for example.

It's not a perfect tool, but if you tried to recreate it yourself, you'd probably start to realize why they netted $450M.

Not quite the same right? FB is way more than a message board. And even back then when they were just a MB, they had millions of users in no-time.

My point is that TodoMVC is a todo list. Trello is a lot more than that.

FB has 3 orders of magnitude more value than Trello with 2 orders of magnitude more users.

There's a halo effect here. If Atlassian can drive powerful integrations with its current products then it can increase the value proposition for those products among Trello customers, driving sales for its own products. Not that there was anything to prevent them from making those integrations before, but now they can go to Trello customers directly and ask them, "hey did you know you can create a Confluence meeting notes document, create a bunch of action items during the meeting, turn them all into Trello cards with the click of a button, and see the real time status of all of them straight from the Confluence document?"

I've said it before and I've say it again: as a community we are not only poor at evaluating startup ideas but shockingly bad at appreciating actual business successes. You know the saying that hindsight is 20/20? Does not apply.

Not sure if I fully agree. The potential and momentum is there for Trello, they can very well grow their sales team and expand their product lines into multiple sectors with this acquisition.