So lets say I buy 100 ENG coins.
Who benefits from this?
I think it is still obvious. Everyone benefits when someone buy, starting from developers down to the whole community holding and believing on that coin.
No one has ever been able to explain to me why buying these coins helps in the functional use of them.
Hmm, it is like a company. They ave their own share of the supply. Ones its value will increase it allows them to have more funds to develop the project. Developing the projects means better functions.