I've a suggestion that I think would be great and save some time. Let's say I'm browsing the tag "c++" in GameDev looking for a specific question, I can't find it in GameDev so I decide to check it in StackOverflow.
Normally I'd go to stackoverflow.com and click [c++] again, however, wouldn't it be easier if in GameDev there was a button saying "See this tag in other StackExchange sites" and you could quickly search for the same tag in StackOverflow, Programmers or other site?
I hope you understand what I mean. Thanks.