I have added a disclaimer to the original post for anyone who is not aware of HYIP (High-Yield Investment Programs).
Basically, Royal Dragon Traders is similar to Gladiacoin, Jetcoin, and other HYIP programs where you can earn Bitcoin's.
To simply put it in words; YES, most HYIP programs are Ponzi schemes and such programs only lasts for a few months however the best part of such programs is that they are PAYING for the duration of each program. Therefore, it is imperative to invest in such programs in the beginning and leave after a few months.
Royal Dragon Traders official launch is on 1st July 2017, and therefore, depending on its popularity, it will have a high chance for lasting for at least a few months, maybe even more.
I have invested in Gladiacoin and it was paying while it lasted however, now they are in the process of returning the initial investments made by members. I wont get my initial investment back because I have already made more money than my initial investment.
Therefore, if you are willing to risk some bitcoins to earn more bitcoins, then Royal Dragon Traders might be great for you. Keep in mind that never invest more than what you can afford and never let yourself be overcome by your greed.
Your strategy may be correct but there is something very important that you are forgetting.
Hyip sites are created by criminals and by investing in these hyip sites you are contributing to the increase of crimes that happen on the internet