Comment by dpwm

Well, I never said I did believe it was private. When I said better, I should really have said better behaved in respect to deletions.

Because of the twitter stream APIs it's not. But there does seem to be a strange presumption amongst users that deleted tweets are gone from public view and cannot resurface. There are people who use tweets in all manner of ways that they really weren't designed for, some of which involve deleting them after a few minutes.

Many a public figure uses these tweet deletion apps. Some do it for more honest reasons (status count limits -- do they still exist?), others do it to limit their exposure.

In the UK at least, there have been cases of libel where either the claimant or the defendant depended upon twitter and in at least one of these the court admitted the claimant had an unfair advantage by forgetting about having a tweet deletion app attached to their account. The case proceeded and the claimant won despite the acknowledged advantage. To some, this may be seen as a clear message that in the eyes of the judiciary it's okay to delete tweets (evidence) as long as it was through an auto deletion app and the individual concerned forgot about its existence.

I would not at all be surprised if some lawyers to the rich quietly suggest they install a tweet deletion app as general advice upon instruction.