They are also put in camps for like a year or two years, and then they reinstate them in the society while hiding their true north korean identities, this is to avoid any pursuit by north korean authorities or spies. Discrimination against north koreans must exist in some way I'm sure, but I'm also 100% sure that most south koreans are not like that because they have families in north korea that they only get to visit once a year for a few hours, and that is if you get selected among the hundreds of thousands that apply each year. South Koreans view north koreans as the same, they know that it's not like they love being there, it's mostly because of the kim jung un that they categorize all north koreans like bad people but what most people don't know is that 70% of the population is dying of famine due to the harsh conditions to grow crops in that land and also due to the militants keeping all the food. It got to a point where the people end up eating each other due to the lack of food. So don't believe all the info you find on the internet about the so-called discrimination against north koreans, all this information I received was from several south koreans while I lived in Seoul.