Overall I love this proposal as it really shows how the DAO is owned by us and can benefit us.
As mentioned by a few others, my biggest worry is about the potential for this to be a pump and dumb. Not intentionally by anyone making the proposal, but if passed (as currently looks likely), this will put upwards pressure on SPS as people want the promo. But then as soon as the snapshot is over, that upward pressure stops, and SPS comes back down. Full disclosure, if this is passed, my plan is to sell right before the snapshot when SPS is at its highest, and use the proceeds to just buy whatever BCX I need, and then buy back into SPS for even more of it when it drops back down.
I do think there needs to be more incentive to stake SPS. The APR is lower and more restrictive for staking it that for putting it in an LP. I guess it gives me the power to vote on proposals? But a few thousand isn't even a drop in the bucket. As others have mentioned, I do think this kind of proposal but with a long-term airdrop would be better. Something like "we do a snapshot every day for a year, and every time an account crosses 100k sps-stake-days it is airdropped one bcx (e.g., 100k sps staked earns 1 bcx in 1 day, 10k SPS staked earns 1 bcx in 10 days)". That would encourage long-term staking, show the benefits of the DAO, and maybe move some LP SPS to staked SPS. And I think more or less all the underlying architecture is there for the team to do that.