I've recently started doing BGs again, and I've noticed that people tend to not buff before the battleground starts. It might not make a huge difference, seing as most people is likely to die at some point during that BG anyways. I think that people avoid to buff players because they are greedy, and they do not want to spend their reagents on people who will die very fast anyways.
My suggestion is that Blizzard can remove the reagents required for buffing only in Battlegrounds. Maybe it should have been posted in the suggestions-forum, but I also find this PvP related.
What do you guys think?