Yeah please don't use phpBB. This is one reason I started the Discourse project. One thing to consider here is the difference between "help us track our bugs"

Yeah please don't use phpBB. This is one reason I started the Discourse project. One thing to consider here is the difference between "help us track our bugs" and "let's build a community around our product". In the long run, the community will be far more valuable than merely acknowledging a feature request or bug report. There are a lot of bugs and even feature requests that require a fair bit of back and forth discussion, both internal and external, to decide what the best approach is. I like GitHub for straightforward bugs, but it is not great for discussion. And involving your active users / customers in the future of your product, including your own team, is a huge strategic advantage.