Well, i think they create the discounts in order to draw in new players or make the Steam userbase be more active.
If you do a discount you expect people to buy them more often. Recently Eagle Dynamics had discounts on their store.
It was 1.5.5 or 1.5.4 which was quite frustrating. I know some of the servers are using some sort of server side label mod. I'll try and find it for you.
This is absolutely amazing. I've been trying to do my own project and i was unable to sidewinder tones working. Could you explain how you made this possible?