I love Trello and used it a lot (before we moved on to something different and easier to understand for most people). However, even when it was important to our

I love Trello and used it a lot (before we moved on to something different and easier to understand for most people). However, even when it was important to our business and we had around 12 users (I know, still relatively small) using it, we never once felt and pressure to pay for the product. Trello didn't build a $1B business because they never forced anyone to pay for their product, even when they were extracting significant value from the platform.