To the best of my knowledge, none of the Wolfram employees is officially representing the company on the site. Certainly I'm not.
I would not assume that just because an issue has been raised on the site, that Wolfram Research is immediately aware of it. Speaking for myself, I know that there have been questions that I've missed the first time they came through, or which had late traffic that was of interest, etc...
Whether or not an issue initially raised here ends up being discussed within the company, there are several advantages to officially communicating with our support staff at
- it gets officially tracked and someone in the company is guaranteed to look at it
- if the issue is in fact a bug, you'll be notified when it's fixed
- some additional weight is given to bugs with multiple external reporters
- the support staff is in a better position to diagnose issues that are specific to your environment and that the StackExchange community can't easily reproduce (in which case a StackExchange question may be closed as 'too localized')