Voted for No.

It's a good question. My two cents:

• It makes sense for Steemit Inc to distribute their stake to Steem users over time. Currently they do this by (a) not claiming on the rewards pool themselves and (b) delegating to trusted dApps that distribute (part of) their share of the reward pool for them. Steemit Inc's stake thus reduces by inflation each year, gradually heading out to users of the dApps.
• dApp use is generally good for new users and smaller powered users. It's much more rewarding to contribute to dTube, Utopian, Steemhunt or Musing than to chase the whales.
• You can consider the use of the Steemit delegated stake as a hit to your own voting power. Alternatively you can consider that everyone is getting a large subsidy by Steemit Inc not using their held stake fully. It depends on where you're standing when you look at the issue. In my view your Steem Power gives you the right to distribute the inflation that your stake generates (less those amounts that go to witnesses to fund the network).
• Without the Steem delegation many of the dApps may fail and new development may halt.
• Many posters have pointed out that the main Steem distribution system does not work. It's dominated by bidbots, vote selling and circular voting, since these generate more return than curation. Without the dApps you are reliant on a small handful of generous individuals battling a morass of bidbot passive investment.
• I would actually prefer Steemit Inc to fully use their stake to fund the dApps and new development so that Steem grows.