My suggestion is to make 2 different RBF one regular mode which factors in gear score (normal currently existing mode). 

Now 2nd mode is more skill based. This one will open RBF to everyone no matter the gear score. Basically add a temporary buff that removes gear effects so that everyone has the same stats. No advantage on gear only advantage is on skill points. This will make this mode more a contest of skill not a contest of gear score. This mode will also let the new players no matter how low level be able to participate and have fun with the rest of the community. 

Also add a leaderboards so that players know who the best of the best is in either category. This can serve as motivation so people can see who has skills and who is all just gear score.