lol thats funny - I don't want to sound like a douchebag, but I'm sorta one of the people that are responsible for bux.to's creation.
I started a site, it was really unique to the Paid To industry, was about a year ago. It was called 'easyadbucks'
I was the first to do some things like sell unreferred members to other members. however back then I didnt' have any money and I had to go with a cheap ass script instead of paying someone to custom program it.
Because of the shitty script and me not being a programmer, the site started growing but not that fast. About 2 weeks later a site launched which used my ideas but called themselves 'adbux' instead of 'easyadbucks'
They did amazing, just exploded in popularity, then other sites like bux.to came along and copied adbux.
There are hundreds of sites liek this out, and they are mostly pieces of crap.
Sites like that are for newbs who don't know any better. The only people who can take advantage of the sites and make some serious cash are experienced affiliate marketers, or people with huge lists, or people with huge ad budgets.
Being a Paid To site owner, I would recommend not bothering with any paid to sites.