A wise man once said that 'the only scarce commodity is time', and I think it's understood that the Community relies on crowdsourcing knowledge (from users and JMP staff alike), and could not operate effectively if it's reliant on a small group.
In addition to the Commmunity, there is also the official support channel, which anyone who licenses a SAS product may use. One key difference is that there are service level agreements for response times, and internal processes for escalation to achieve satisfactory resolution. This is definitely the best mechanism for surfacing suspected bugs, but also for making new feature requests. In addition, 'How do I?' questions, or 'I'm used to software X but can't do the same thing in JMP' questions will also be answered, but within this more rigorous and predictable framework.
So, for bugs and features, or if the Community appears unresponsive, I would certainly consider this channel too. And, stating the obvious perhaps, it doesn't have to be 'one or the other'. Many Community threads have lead to support tracks.