Copyrights? o.o I don't get it.
Some of the jobs, such a lawyer or technical writer, etc. will have it so you get an email and it says that some other person who works in the same field as you (so, another lawyer or another technical writer) is claiming that you "stole" their work. Well, not you of course, but your little person. That's called "plagiarism" but "copyright infringment" is similar. Basically it's stealing another person's work or ideas.
So, what happens is there is an email claiming that your little person has done this and then your little person loses all the progress that they have made on that career level. So, if your little person is on level three and the bar is almost filled up to reach level four, it wipes out all the progress and it's back to the very beginning of the level three bar.
That's what the first person was talking about and it actually happens A Lot in this game, which is extremely frustrating.