I haven't been here very long at all. After I established my collection, I began referring to the report of cards in my collection with no image. I started scanning what I had that was missing from the site. I have 281 scans between fronts and backs. I uploaded an entire 90 card base set, fronts and backs. Sometime during that run I gained access to approve my own submissions.
I had also asked a few questions and been responsible for a set or two coming into existence (things I had to request and others took care of), as well as completing a few sets so that a gallery or two could come into existence.
But my point is that in a relatively short time I guess I demonstrated earnest (and quality) contributions to the database to the point where I was granted access to approve my own submissions.
There was no message from anyone. For days I was uploading images, and the next day when I continued, things looked different during the process and I realized that I was able to finish the job myself now.
Not a true card collector, but at times have collected cards in an ancillary manner to other interests.