i thought your rep power increased with the amount of times you posted..lol!..
This is how it usually works.
If a person with a rep power of 10 approves one of your messages, it gives you 10 reputation points. If a newbie has no rep power and they approve your post, then you won't get any points from them (but it's kind of them anyway )
Your rep power depends on a number of things including how many posts you have made, how long you have been a member and how many reputation points you have.
The quickest way of upping your rep power, is to post loads and approve messages of people with high rep power, so that maybe they will reciprocate. In other words grovel
At the end of the day…it's just a bit of fun. Nothing to take too seriously.
Right....off to do some grovelling
Thank you Karion Dieting for explaining it so well