Recently I have seen loads of premades in the battlegrounds category that weren't there before, from flex 4 garrosh, to heroic scenarios. Is this people just being stupid or is it a bug in the system? Whatever it is, it's truely annoying

that bug was fixed last week with 1.8.7b

please update to the latest

version 1.8.8a is still loading premades into the battlegrounds category incorrectly

no it's not. the groups in the wrong category are using an old version or the leaders aren't setting them properly.

1.8.8 will show the group in the specified category