While I agree that you must pay with no delay, double checking those stats might be good. Is JD really making multiple 100BTC payouts every single day?

I checked the logs, and no, to be honest it isn't. Some days there aren't any >100 BTC withdrawal requests.
Here's a recent list - 19 of them in 16 days:
Thu May 8 23:05:48 2014 299.99990000
Fri May 9 18:27:37 2014 456.00000000
Sat May 10 09:21:56 2014 115.00000000
Mon May 12 04:41:54 2014 214.98521826
Mon May 12 04:47:59 2014 229.99990000
Mon May 12 12:22:40 2014 191.83990000
Mon May 12 16:03:22 2014 137.00000000
Mon May 12 16:21:24 2014 161.00000000
Mon May 12 16:46:28 2014 196.00000000
Fri May 16 11:01:50 2014 192.46322271
Sat May 17 06:26:21 2014 269.00000000
Mon May 19 19:06:15 2014 245.00000000
Tue May 20 11:24:39 2014 188.00000000
Tue May 20 13:52:08 2014 520.00000000
Tue May 20 20:23:35 2014 337.00000000
Thu May 22 14:23:43 2014 219.00000000
Fri May 23 00:37:18 2014 222.16562487
Fri May 23 08:24:14 2014 103.75190000
Sat May 24 02:37:43 2014 220.40176959