The idea of HODL is entirely up to you and your greed level. If you wish to have trust in the project, then, its entirely up to you.
Until when do you have the mindset that holding bitcoins is greed?
I don't think holding is greed because they have their own targets for a certain period of time before taking profits. Being a holder is a good option to expect a commensurate return, so it is not true that holding is greed even if they expect higher returns. If you understand that investing takes time to pay off, then you shouldn't say that holding is greed.
Holding is never a greed harbit, everybody knows what he or she wants and if @imamusma wants what is more bigger than yours don't take it as greed everyone know what he/she wants, @Rivaldine your words makes me to know that you are a short term investor, but I hope now you know that long term holding is not part of greed, is good when you invest a capital on investment and you start getting profits it's good to invest more on it but if you don't have more capital to invest hold the profits you have earned for longer period, but before joining an investment give your self time for you to sell so you won't rush and sell for lower rate, (time schedule).