It's gotten harder to do so over the years. I used to lodge several edits, people would build on what was written. Now it seems like everything gets an automatic revert. I'd dismiss it as the mediocre quality of my contributions, but I don't think I'm alone:

> "Wikipedia has changed from the encyclopedia that anyone can edit to the encyclopedia that anyone who understands the norms, socializes himself or herself, dodges the impersonal wall of semi-automated rejection, and still wants to voluntarily contribute his or her time and energy can edit," Halfaker said.

http://www1.umn.edu/news/news-releases/2013/UR_CONTENT_42836...