On 03 May there was, for my logs, a record number of Skykings in a short period of time.
11 separate Skykings, with no errors or corrections, from 0052z to 0447z, 03 May, 2019. That number matches one other date in my logs, 25 October, 2017, also 11 that day. In 2015 I logged 12 on one day, but several of them were corrections ("ignore my last" etc).
I don't really do the HF-GCS network as such, but I do record a few other things nearly 24/7, and I end up catching a lot of HF-GCS traffic as collateral traffic.
T!