I looked at a sample. Virtually all of them were deleted within two hours of being posted. Some[NB: See update below.] Some within a few minutes.
I'm leaning towards No, but this is a result of weighing up of several factors, and I completely understand some people would conclude the answer was Yes.
Update: There has been some criticism of the numbers in this answer - particularly the claim above "Virtually all of them were deleted within two hours."
My initial statement was from a quick and dirty analysis. Andrew has performed a more systematic one, based on the flags that he has raised, which suggests my claim is false. Only being questions that Andrew flagged is its own source of bias, so I wanted to do another analysis.
Today, I tried to do a systematic one based on all deleted answers, using the Stack Exchange Data Explorer. However, my assumption that I could see the deleted questions if I was logged into the Data Explorer as a mod was false.
So, instead I ran a query of the newest deleted questions that reference the holocaust and manually walked through it until I got bored, which turned out to be 16 questions. [Disclaimer: Not having a fixed target before collecting the data is a potential source of bias.]
I stopped the clock when the question was closed (if it was closed before it was deleted). I bolded the ones higher than 2 hours.
- 93 minutes
- 167 minutes
- 1 minute
- 172 minutes
- 2 minutes
- 211 minutes
- 2876 minutes [Exception mentioned in the initial claim.]
- 212 minutes
- 110 minutes
- 11 minutes
- 34 minutes
- 203 minutes
- 33 minutes
- 29 minutes
- Self Deleted, not trolling
- 43 minutes
- 61 minutes
Based on the number of bolded entries, I agree that Andrew's criticism of my "2 hours" claim is fair and correct; I thank him for challenging me on this. I withdraw the claim, and apologise for being misleading.