[rwhitman]

Like many folks I've been burned a number of times when I locked into software that was "free forever". Usually not because the software owner put up a paywall, but because the business was found unsustainable and it was either sold or they pulled the plug.

I love Trello immensely but the "free forever" aspect worries me about trusting it over the longterm. I've tried to turn my clients onto Trello and have been met with the same skepticism over entrusting an entire business workflow to a free product. Just from a trust perspective, it would honestly put my mind at ease to find out it was making a buck somehow...

[MarkMc]

This was my thought too. Perhaps Trello is one of those strange cases where making the product more restrictive (eg. you must pay to create more than 500 cards) would increase the demand for the product.