I have played the game for thousands of hours since 2004.
I have Magic 106, Ranged 104, Constitution 100, Defense 99, Summoning 99, Slayer 104. I have 135 combat -- the highest possible is 138.
Maybe playing video games is a weakness. Indeed, my Strength is only 90. That is incredibly low for my rank.
Also my net worth is 138 million gp -- very low for my rank. I would not dream of a weapon of level 80 or above.