I totally disagree that BitCoinPlus is a scam.
One of the goals of the BitCoin project as a form of digital cash is to enable micro transactions. In order to make micro transactions pay off, you need a lot of them. Having a visitor to a website compute a few hashes is a microtransaction far less objectionable than most ads, and it is far more reliable in terms of payout than an ad's click through rate. Getting thousands of visitors a day to a website is what it takes to make BitCoinPlus work for you.
User Error.