Posting ANYTHING on the WoW forums will result in having everyone else in the world, except GM's, responding with what they think about it. Half of them will be 14 year old kids that will talk crap on their level 17 alt. The other half will somehow attempt to insult you when you explain why you need raid lead in BGs. Bad Idea.

Do you need raid lead? Could you just ask them to move you in the same group? Most people don't want to give up raid lead, kind of like that drunk guy at a wedding who won't give up the microphone. You may find that if you politely ask them to move you in the same group, or pass you lead so you can do it AND PASS IT BACK...your chances of it happening increase.

The other thing you can do is get an add-on (I forget which one it is) that will automatically enter a BG when it pops. This almost always guarantees you first position (Raid Lead).