I also flew into STN on a couple of occasions as SLF recently, once before the security hooha and once after. I am one of those who accepts Ryanair for what they are, as long as they don't start falling out of the sky. That said, the Swissport baggage handling is truly pi$$poor. Given the FR system, one usually finds oneself standing in line to board, while gazing out of the window at, yes, the baggage handlers misshandling the luggage. It is excrutiating watching the bags falling off the conveyor and being crammed into the trolleys. I am sure they do it on purpose.
The other notable thing about STN baggage handling is the fact that there will always be a small number of bags on the carousel after everyone has left. It is sad to read the tags for Malaga, Rome, etc, and in one odd case, Anchorage, Alaska (I suppose they just didn't know where it was, so refused to touch it).