It's not always about helping people. I think if you keep posting BIG NEWS and I mean BIG... This news will become great discussion and you can show how much you know about it. I think you will become popular faster than Mr.Snail (I hope that's not someone's ID )
The only way which I know is to just help out other guys and never spam into forum. Always be gentle to others feeling. Hope that these may help you out in faster growing up.
The best way to increase your reputation on any online community - is to help others, and share knowledge. How do you expect to have a big rep if you don't help anyone?
Be nice on the forums, building a reputation here is just like building a reputation in real life. You want to be famous but not infamous. Treat users how you wish to be treated, "suck up to the admins and mods" haha JK