Good questions.

Have a read of my linked posts. I personally believe the Purge is necessary to reduce the debt and give us a chance of SBD becoming the Stable Coin it was always designed to be. But the Purge itself will have some short term negative price influence on STEEM.

If the system stops making SBDs and we neither have SBDs as a Stable Coin nor a Liquid Post Reward then SBD really is redundant from a system perspective. There are many who think we should get rid of SBDs anyway but I think it is a shame because at one stage SBD was potentially a market leading Stable Coin that could have attracted mainstream use along with merchants to the platform.