Considering devs are holding 4% from pre-mine (ie. 420000, resp 420 MN) is not good. They are receiving over 15% of all newly created coins which means they will end with about 2 millions coins in the end which is 20% of total supply ever.
Based on this this, real pre-mine will be actually up to 20% not 4%. They can easily manipulate price, dump anytime, whatever they wish. Actually they receive much more coins because many coins are paid to them for operations.

They should fix these parameters to make platform more economically sensible for others. I suggest burning part of received coins to decrease supply and to decrease their strong monopoly position on the market and create incentive for other investors.

I like the GIN platform but economical point of view (described above) is far from being acceptable for future investment due to dev overwhelming control over supply. I hope the team will fix it. It would be bad to destroy such a project just for a greed.

My suggestion is: lock your 4% of your pre-mined coins (don't use them for your masternodes), put to market 1% or less per year max and also burn half GINs you receive from operations. Then the platform can be invested, evaluated and growing from capitalization point of view long-term. Right now I would not recommend it to anyone for investment.