People don't often use there real names on platforms like this.
When I started, I didn't know much about it at all, never even googled it, just signed up for a social media based on a mouth to mouth reference with no information. I am not a reddit person and the like. Social to me means, people have some idea as to who I am. I didn't add my full name because I thought I could do that later. Lucky ;) Not that it matters, I am easy enough to find.