How to increase your followers fastly?
I have seen scratchers with 300-400 followers.. How?

These are usually famous scratchers who have projects on the front page on a regular basis. Some popular forum members are also able to gain this many followers. The best way for you to increase your followers is to make great projects, and then advertise them both in the forum's Show and Tell section, and in your signature. Also try adding a ‘Please Follow me if you would like to be notified of my future cool projects!’ or similar message in the Project Info section of your projects