As I said: past performance does not guarantee future results. So any site's past performance (eg payouts) doesn't mean they are a legitimate site. Past payouts doesn't remove the need to show any other proof of legitimacy.

Unlike cloudmining.website, Bit-X can pay users' mined BTC out whenever, not only at the end of the week. If you'd like proof, just ask the numerous users who have purchased Gh/s who receive daily earnings. Likewise, a user can sell (trade) their Gh/s at any point in time (there is no fixed contract unlike with cloudmining.website and other 'mining' sites).

At the end of the day, a user must do his own research before investing into anything.