LGHT, if you have room to grow more plants, why not try them. It is kinda fun watching them grow wondering what they are. BigT makes a good point. You may end up finding you like a pepper you never knew existed. In regards to the peat question. There seems to be a variety of opinions about using peat to start or grow chili plants. I've used several different growing media in my short career as a chili farmer, and I don't see much difference. But if someone wisely recommends not using it with their seeds, I might give them the benefit of the doubt and listen to them. Good luck and start a thread with your mystery seeds. Maybe some of us will be able to help you figure out what they are.