I don't like combat. I think combat is bloat. I think it's too far outside the scope of an RC sim. Does it increase sales of RF? I have no idea. I have not seen the sales figures. Every month or so at rcg.com, people ask what the best RC sim is. I have never once heard anyone say, "Get RF, it has combat." I think combat is just a diversion for anyone who has RF. I doubt combat was the tipping point for a purchase decision.
As for your telemetry idea, it's already there, and customizable. Just hit 1.
Nobody makes 'frivolous requests.' Some people make popular requests. Others make requests that few or nobody likes. If you only want responses that are gaga over your idea, you'll never know if it's really a hit with alot of users. If your idea is popular, you will get discussion. Voice chat and combat are proof of that.