You can guess all you want but you have no way of knowing what the intent of the option position buyer/seller was. The puts could be bot long, sold short or they could be coupled with stock or part of a more complex option strategy.
kingofshorts took 100K in "free money" as a vertical because his broker wouldn't let him sell the calls naked
Good point! Which vertical play do you mean? Any context about this? I also had the same trouble, my broker doesn't allow me to sell the calls naked...
This was actually meant to go in a different thread (about leap calls), and poke a little fun there where one could imagine some party sold a 100K lot of FOTM $5 spreads at a penny apiece from examination of the open interest. It is insufficiently humorous to bother finding the right thread now.