To be quite honest, EA staff gave up on the Skate forums a long time ago. For them, it was like going to work and having all the kids tell you that you're doing a shitty job. A demoralizing way to spend the day, so they stopped listening. I don't think any amount of positivity or post boosting is going to help over there.

One thing that EA does is check the statistics of your gameplay. Developers can tell when you're playing, what game mode you're using, and where in the city you're playing. (basically, all of the stats in your career mode, and much much more.) This isn't just an EA thing, it's tracking that all developers are using to make future instalments of a series. In my opinion, the best thing that people can do to have an effect on the series, is to not stop playing the game.