All of the LP positions with $ARB are token holders who own governance rights. I don’t think selectivity is fair or legitimate to attach to voting rights. I would support using Flexible Voting.
As for the intention of rewarding LPs in a selective way, we could do an AIP asking for 365k $arb and use quadratic voting to decide which LP positions to reward. This is just an off the top of my head idea, but i like it better than being selective in this way about voting rights.