I've had a couple people do this. I get a friend request. I accept the friend request. The person sends a message about where I can buy WOW gold, then immediately un-friends me. Because he's no longer on my friend list, I can't report him. This happens so fast that I have absolutely no opportunity to even grab his full Battle.NET tag.
There should be a way to report people who you're no longer friends with, for a little while, at least.
MVP - Diablo III
The key with this is don't accept unknown friend requests. But I do agree it's annoying. As for your suggestion it's best if you want to discuss(get advice etc) general things or ideas/suggestions etc to post in the general discussion forum here: http://us.battle.net/hearthstone/en/forum/10591464/
As this is a technical support forum, it won't get attention from the right people or general population.
Twitter: @Narull | ANZ Diablo III MVP
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There not spelling mistakes, Im speaking 'Ye Old English'
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