Once hf25 makes hive to hbd conversions we will see enough arbitrage taking place to hold the peg.
If not, we can increase interest on it.

If @klye gets loans going we can start multiplying how many are out there, no way 7m hbd replace more than 7m usd, it's just the nature of the math.
We need 100m hbd before we are any threat to taking over.
How we get there I'm not sure, but this is the game we are playing.

Who pays btc or eth fees when they can just as easy use hive?

What kind of fees does tether charge?