Hello. What bitcoin scaling path HaoBTC is going to support, any ideas? 
All of them except gambling and exchange heh. They offer mining, hash exchange, investment, everything lol
What do gambling, exchanges, and investments have to do with choosing between BTU and BTC?
My assumption is they are going to stay with BTC, as are most other large miners.
Choosing between BTC and BTU isn't a "scaling" path. BTC has already scaled compared to BTU - choosing between them would be a "business model" not a "scaling path." I assumed you were referring to an actual path to scale