Dero has a good tech. It could be one of the most innovative coin among others.
However, since the main product isn't yet delivered, it's difficult to gain trust from wider user base especially with the premine issue is not yet solved. The development can be halted once the premine is dumped (which can happen anytime). Whoever investing now is at the mercy of the anonymous dev team.
The risk is extremely high for investor.
If the dev team decided to lock the premine (which I hope so), it will reduce the risk for investor therefore it can attract more people with stricter risk profile.

I understand the premine is wholly belong to the dev team since they are the one who started Dero and work the hardest. My suggestion is to lock the premine according to the progress of the Dero project itself. Once the whole product is out, the Dev team can dump their premine. or Save some since they should believe in Dero too.

For those expecting moon, good luck and see you on the other side of the moon.