Wikipedia makes this very difficult as well. I had to submit a small update to sales numbers for the best-selling video game franchises of all time THREE times because two separate admins reverted my edits for the most stupid reasons possible. Then they had some hand-wringing about the lack of sources (even though most of the data there wasn't sourced any better) before they stubbornly decided to stop reverting my edits. A less stubborn person would've given up editing Wikipedia after the first or even the second reversion.