I really like your project, but how are you going to solve the problem with consumed electricity cooling? Data centers for sure consume a lot.

Just like the price of Bitcoin the profitability of mining can swing drastically. However, Bitcoin’s historical average mining profitability is about $15 a day with standard currently available equipment (the S9). 2500 of these machines would make $37,500 a day gross and $27,625 a day in profit after the estimated power cost (at $0.12kWh).

Is it possible to calculate the profitability of such a project?

Hi,  how are you going to solve the problem with lack of hardware? where will you get it?

Where will the proceeds from the crystals go?

Hi. accordind the white paper, the Foleum project will be manufacturing and selling GPU beginner mining rigs along with its full-size servers and “build your own” mining kits to the blockchain mining community.

And what about the reserve? What will you do with it?

Crystal holders are entitled to receive distributions of up to 60% of the Project’s mining profits, and the remaining profits are reinvested in the Project in order to maximize the Project’s potential for future earnings.

Team said, that FOL crystal holders will receive special discounts on all equipment purchases from Foleum.

Yes. they are officially approved. "The FOL Crystal (token) is classified as a security under U.S. securities laws and as a result the ICO will be restricted to certain types of investors in order to comply with U.S. securities laws. To comply with U.S. securities laws, the first four sale stages, the Pre-sale, and the Early Adopter Sale, will be restricted to U.S. accredited investors only and sold pursuant to such investors pursuant to a Simple
Agreement for Future Tokens pursuant to Regulation D, Rule 506(c) of the U.S. Securities Act of 1933, as amended (the “Securities Act”)." - Official information from white paper of project.