Hey Tienbau,
First of all welcome back and I want to wish you the best of all luck with the start-up you've co-founded.
However..
I have to say that I'm against using this kind of technology in general.
The cryptocurrency mining-craze is hurting the gamer community by pushing the prices of high-end GPUs to almost double MSRP due to shortages.
My local hardware store which is a chain of about 14-15 stores across the Netherlands has even pulled them from their website because they simply are unable to get it in stock.
Also the global total power consumption of these mining/transaction farms has already exceeded the total yearly power consumption of my country as a whole (~17 million citizens).
Ethereum in particular lends itself well for mining using GPUs.
https://arstechnica.com/tech-policy/2018/01/cryptocurrency-boom-creates-insane-global-graphics-card-shortage/
https://www.digitaltrends.com/computing/cryptocurrency-mining-graphics-card-prices/
https://www.polygon.com/2018/1/23/16921356/nvidia-graphics-cards-sold-out-cryptocurrency-miners
http://www.pcgamer.com/micro-center-will-sell-you-a-graphics-card-at-msrp-if-its-for-gaming-instead-of-mining/
Prime example of how this has gotten out of hand:
https://www.youtube.com/watch?v=CHRVFmaJDV8
I see alot of rear I/O displayport, HDMI and DVI connectors... and not a single monitor connected to them.