Go to any free to play world, varrock west bank. Sit there for hours reporting people. This has been tested and it actully has made somebody a mod before.
Go to draynor F2P world and start reporting autoers lol. keep hopping worlds you will be a mod in no time. but unfortunatly you wont make alot of the people here at sythe happy because alot of the autoers are from sythe
Report people who are obviously cheating. And those doing serious offenses. Then buy mod recommendations from RS p mods here and you have a fair chance of being chosen as a RS p mod.