Looks cool, but if you ask me a monthly subscription model isn't optimal for this kind of thing because the churn[1] rate will be so high.

Why do I expect a high churn rate? Well, there are two options. Either the splash pages created with quicklytest.it get some traffic or they don't. If they don't get traffic the user will get demotivated and stop. Cancel subscription. And if the user does drum up attention for his idea? Then he's going to replace the quicklytest.it page with his own thing. Again, cancel subscription.

I like the idea, but it will be very tough to make money from it.

[1] Percentage of subscriptions canceled each month