@nicholas8023 - If you see activities that are incorrect, like people using a motorcycle or car, you should flag them. It is really easy to do and will remove them from the leaderboards. Just click on the activity to open it up, then click on the three dots on the left side of the screen and select "flag". Right now, it can only be done from the web browser version of strava. Hopefully in the future it will be available from the mobile app.
