It's a way to say "the person sharing this is also the person who made it, and didn't just find something someone else made and posted it because they liked it or felt that it was relevant or shareable". Like if you're in a band and post one of your own songs, that's OC. If you post a new song release from a band you like, that's not OC.
It's a way to say "the person sharing this is also the person who made it, and didn't just find something someone else made and posted it because they liked it or felt that it was relevant or shareable". Like if you're in a band and post one of your own songs, that's OC. If you post a new song release from a band you like, that's not OC.