Formula One

So, on the fan scale, I am firmly entrenched in "casual". And I'm too lazy to wade through all that has been written about the subject of the Red Bull/Horner "investigation". As far as I can tell, Horner did something questionable, Red Bull investigated and found no wrong-doing, but there are still people saying Horner should be gone. Can one of you fine folks please summarize what's going on?