Remember that this is a user forum. Although the Sparxians are active and helpful participants, this is not the the 'official' communication to Sparx, but rather a means of open discussion among all EA users.
This forum section, as well as the Suggestions and Requests section, are good ways to air a concern or an idea. You might find helpful hints, new viewpoints, workarounds, or even complete solutions.
When it comes to 'real' bugs, things that are actually going wrong rather than (for example) side effects of how EA is being used, the bug report form (versus the forum) is the means of getting the bug in front of Sparx. Even if you are sure something is a bug, it is a good idea to start or join a forum thread on the subject. That way the rest of us users will know what is going on. The Sparxians might be able to offer some temporary insight or relief too, so paste the URL of the forum thread into your bug report. Finally, if you get an answer back from Sparx, please post back to the forum thread to keep us all in the loop.
The above practice works for suggestions as well. In the case of suggestions it is often worth while starting a forum thread first, to see if some new ideas appear quickly. These will often modify or refine your suggestion, and could make the request form easier to work through.
David