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.
I don't think that holding bitcoin for long is greed. No, instead for you to be able to hold your bitcoin for long needs patience and self discipline with a lot of sacrifice which a newbie might see very hard to accomplish. What is greed is trading or selling your bitcoin because you feel that is the best way to add more bitcoin to your portfolio which is a very wrong idea,because you will always end up selling at the wrong time thinking that it is the right time to sell off some bitcoin. Most newbies always feel that after buying and the price pumps a little that is the right time to sell and the end up using 100% of their funds to invest in bitcoin. And when the price didn't move up as they planned,instead the price goes dip,they and sell off because they lack the knowledge on how to have a good profit on bitcoin by holding for a long time. Well we all have our reasons on why we are buying bitcoin.
I really believe that people who hold bitcoin for a very long time based on their knowledge and trust in bitcoin, so they are able to hold it even for an indefinite time.
Greed is synonymous with loss, and personally I can say holding bitcoin in the long term will result in profits not losses. And also usually greedy people do things with uncontrollable emotions, while the people who talk a lot about holding bitcoin are people who have knowledge and they do it by doing research or analysis, after all, what I've seen so far they are people who understand good management and discipline, so saying someone who holds bitcoin is someone who is greedy is something of an inappropriate judgment or even not right at all. Except they have no knowledge at all and have no idea of the risks and they do it on the basis of following others, while they have absolutely no idea what they are actually doing.