They only create altcoin not for the benefits of the community but because of their selfish and greedy intentions, that's why you see an altcoin that's doing great to will suddenly get rugged the next day.
That's their product and having a product through an altcoin is a big responsibility. And these developers know nothing but only the best for themselves and not for the project.
They make one, sell it to the gullible investors that think they've got an amazing thing and project and then all of a sudden, they'll only see that they're being rug pulled.