Working at my day job, mostly. ;)
I've had very little time to spend on the forums for several days now, unfortunately. Some weeks I can carve out lots of time - other weeks not so much. (And this is a good time to mention again that I'll be away from AdWords for the month of July, and neither reading or posting.)
I will absolutely pass feedback from this thread along to the right teams - I'll send them the link, plus quote several of you in the Advertiser Feedback Report. In the meantime, the best approaches towards improving your experience with broad match (at least IMO) have already been suggested in this thread:
* use negative keywords to your advantage
* take advantage of the search query report (and your own logs) to mine for negatives
* seriously consider using phrase match instead of broad (as phrase match keywords are not 'expanded')
* seriously consider using exact match keywords instead of broad (since, as with phrase match, they are not 'expanded')
All that said, please know that your feedback will be seen by the right folks.