I don’t think we should move in that direction. A four-weeks commitment is too long - it reduces the flexibility of the program and I’m afraid it will hurt our ability to accomplish Goal #3 from Mike’s excellent post kicking-off the V2 Liquidity Mining brainstorm:
I understand the concern and appreciate the care for small liquidity providers, but I would rather not sacrifice the LM program’s flexibility for this. Eventually this will probably be addressed by solutions built on top of the staking contracts - eg something that aggregates BPT before staking.