Relax, the 20,000 and 400,000 figures are bogus. They represent the total number of convictions all those people who lied and signed the petition.
If you look at the following
LIST, you will see that Daniel Coughlin appears on the list 10 times, but all with the same PWF Signer ID : 100011303. So, the counts will reflect 10 instead of just one. It would be interesting to know how many felons actually signed the petitions, but there in no way to know that from this vantage point.
Now, will Grim admit he is 98% wrong with this thread? Somehow I doubt it.