For the record I've set my price feeds to set the price pegged to 1 USD = 1 SBD. As well as a small APR of 1.5%. Though, my settings doesn't count since I'm not one of the top 20 witnesses, but that's my stand as of now.
I think a bias price to keep the peg closer is a good incentive to make people hold their assets and not sell (not push the price of SBD down further). It will adjust on each update accordingly.