Unfortunately I am no longer a fan of Dubli. It is of dubious value and feels more like a way to separate you and your money. Its not technically gambling but has elements in the auctions that certainly feel like gambling.
I guess when you add it all up it is a system where, like a casino, there are more losers than winners. For example, to participate in the auctions you have to spend credits to see the latest price. If that price is not attractive you just lost your 80 cent credit. When someone looks at the price, part of that 80 cents goes to reducing the price and part goes to Dubli (I think it was 50/30 but I don’t remember exactly). For a deal to be a really good one, lots of people have to look (by paying an 80 cent credit) which eventually reduces the price until someone buys the item.
That means for you to get a good price a lot of people have had to spend 80 cents which they then have lost if they don’t buy — bottom line more losers than winners.
If you do chose to get involved be aware that the credits you buy will expire after 12 months. It isn’t pointed out and there are no warning emails or notifications. The kit I bought required I get $750 worth of credits — now all forfeited.
Is Dubli a scam? No, probably not but it certainly doesn’t create value for most of its customers. There are better business opportunities to be had elsewhere.