I've been asked about my thoughts on this by a number of people so I figured it was best to post them here publicly.
First, as many people have stated in the comments, I agree that it would be very helpful to have the reasoning behind the proposed change included in the proposal. I know that you posted this on behalf of others, @clayboyn, so this comment is for those who requested that you put up this proposal and generally for anyone who wants to make a proposal in the future.
Second, while I'm not advocating for or against this proposal, I don't see it causing any issues for the ecosystem if it passes. Since we only have one way conversions (SPS -> DEC), as compared to other systems like Hive that have two way conversions (HIVE <-> HBD), I don't foresee any exploits being possible if the fee is reduced or even removed.
RE: SPS Governance Proposal - Reduce SPS to DEC Conversion Fee