Naturally. If you treat twitter as the service it started as (a microblogging service) then being able to share those short updates while they are relevant, and have them deleted once their applicability expires, keeps things nice and clean without having to give up a voice.

That’s like making the argument for abstinence vs. birth control. Yes, the only 100% solution is not to ever post anything publicly. But there is still value in making things more private/less permanently persistent for the people who still choose to post.

It depends on the benefits the individual gets from still using Twitter.