You will get one green square for every 100 rep points you gather. After 500 points you will get a light green square every 200 rep points. So, i have 1000+ rep points right now.
I can't wait until I get my second green here. Only like 80+ greens to go...I lost a lot of mine in my 10 days of my account being disabled. (I'm talkin' over 50 lost.)
As long as it's not red you'll be okay. Every time I see some with red rep, especially in sales threads I think twice about using their services.
In sales i look more for the iTrader but yes, the green rep is important too. Especially now, that in order to give red, you receive a red too.
Rep usually have more effect when it comes to doing business. People may think twice before doing business with a red.
Many care about it and I think you too since you started this thread J/K Just follow the faqs and you'll do well, it will also prevent you from getting infractions (a new system). I thought in the sales/trade threads people look at the iTrader before doing business
I would also look at both iTrader and the reputation as well. I avoid doing business with big red winners!