Feel free to use the /feedback command to relay back information about undesirable behavior and additional functionality ideas.

Broken Functionality
Try to include a particular event or command the issue seems to be associated with. For example, this can be as simple as 'when i login'. It is not critical that behavior is specific, i.e. "i was moving around" is fine.

If an exception occurs, where a large black popup is shown, include the top line's information. The important part will be a reference to a method, such as "NewQuestAddEvent", and a number next to it -- which specifies the line number in the source code where the error is originating from.

You can also file a bug or request a feature through the Neo Natura Support Portal.

Enhancements
Incorporate already used styles when recommending new functionality. Submitting a request for more graphical functionality will likely not have a high priority, for example, since the add-on is geared towards text-based use and display.

Requests that encompass a larger scope will also trigger a higher priority. For example, requesting that quests show their relative direction and distance will trigger a lower priority for being implemented then requesting that quests, zones, vendors, and friends all show their relative direction and distance. In other words, a generic approach that applies to the entire add-on at once is preferred over specialized implementations.