Actually I'd like to add something:
Since you already have a small emphasize on being advertiser friendly: Maybe you'd like to rethink allowing clicking the same ads every day. Right now with so little advertisers aboard I almost feel bad that I am using up the clicks of sites that I do already know. Maybe limit it after the first 2 days so that you can rclick a site already visited only every other day and after another amount of clicks limit it to once per week. Just something to think about.
I just did that... by mistake

I worked on something and I commented the line of code which verified if the user already click an ad today. Guess what, a user clicked a total of 241 ads today...

If you click again and again on the same day, you already know the advertised website. Your curiosity is lower, and your visit will be considered gibberish traffic. If we want to have more advertisers and, of course, more ads, the traffic created by our users should have a good quality.
The invalid clicks made by the users who preferred to exploit the bug instead of reporting it will be removed. The user who noticed me about this bug received a one week Golden Membership

Next time you find a bug, report it instead of exploit it

Yeah things like that happen, when coding. I know that all too well. But I don't know if I made myself clear: The intedned way of the site to work is that I can click the ads once every day. Regardless of how often I already clicked that very same ad on the days before. For me as a clicker that's just great. But I imagine for an advertiser it's kind of unsatisfying to know that a percentage of the clicks he bought will be used up by the same person. And that's where my aforementioned ideas would kick in to reduce that percentage.