Sure! Any MarineTraffic user that contributes to the collection of AIS Data is eligible to take part in the Station Operator Contest.
What's more, as a token of our appreciation to all contributors covering lakes and rivers, this year (2016) we have launched a new path to victory regarding the MarineTraffic AIS Station Operator Contest. From this year on, all stations near rivers and lakes are marked as Inland stations and are nominated rankings as shown in the following picture.
If you believe that your station is competing in the wrong category, please submit a request here.