Before I joined WikiTree, sources were spelled differently and were delicious toppings added to a main course. The only other meaning I knew was where the water in a stream or river came from.
When I joined WikiTree, I saw the mention of sources in tthings like the honor code and G2G, but I thought writing bios was all about the story of someone's life and that it didn't matter where it came from, as long as it was a story. I didn't think it would ever be possible for me to find out the names of both of my grandfathers, or anything at all about my great-grandparents, since they all came from either Russia or Hungary and that's all I knew. People were helping me, though, and I started to find out a few things. It was still very slow going, though.
Then I saw a G2G post asking for volunteers to find information to wrtie bios for people whose bios were totally empty. I figure that this would give me a start on learning how to do research if I picked one who lived in the United States and more recently than my ancestors ... so I did. The one I picked had parents, siblings, spouse, and children and I found information about them in the course of my research ... so I just kept on going. Anne B and Jillaine Smith were wonderful mentors for me - they must have had a good laugh at how naive I was, but they kept encouraging me and correcting me and sometimes finding sources for me when I got stuck. I ended up learning to research in Germany as I got further back. I ended up adopting 1,000+ profiles that all came from the same gedcom as my first one and I'm still working on them.
The happy ending is that, after about 6 months on my "adopted" family, I had learned some skills and went back to my family. With help from a few more members who made some breaktroughs, I have now found all kinds of family that I never knew about. I finally made my first connection to another profile already on WikiTree about a month ago and was sooooo excited when that happened! I guess you could say that I now totally hooked on genealogy.