I'm not sure what I think abt basing it on a daily transaction. I'm always trying for a survey every day, but this month, I haven't been able to get one at all sometimes - nor do I do offers every day, either. Or shopping either! So even tho I visit SR/forums for multiple reasons every day, I don't always have a transaction for every single day .(- tho I think I probly do for most days!) So to me it seems it would be more fair to base a system like that on having at least 2-5 other transactions over a week's time. Just my 2 cents.
And really, how silly - just do ONLY that one thing and wait for months/years to get 20$!!Why not do more and get more?!?!