OK, that’s interesting, thank you @dob 
As for the concept of a “floor”, this is a Protocol Parameter that I was not aware of 
Perhaps this should be listed in the livepeer_cli? 
The parameters currently listed in livepeer_cli, when calling 2. View protocol parameters are as below:
*--------------------------------*--------------------------------*
| Protocol Paused | false |
*--------------------------------*--------------------------------*
| Max # Active Orchestrators | 100 |
*--------------------------------*--------------------------------*
| RoundLength (Blocks) | 5760 |
*--------------------------------*--------------------------------*
| RoundLockAmount (%) | 10 |
*--------------------------------*--------------------------------*
| UnbondingPeriod (Rounds) | 7 |
*--------------------------------*--------------------------------*
| Inflation (%) | 0.08 |
*--------------------------------*--------------------------------*
| InflationChange (%) | 0.0003 |
*--------------------------------*--------------------------------*
| TargetBondingRate (%) | 50 |
*--------------------------------*--------------------------------*
| Total Bonded | 13469475.399712216278547535 |
| | LPT |
*--------------------------------*--------------------------------*
| Total Supply | 20198666.105257375922566886 |
| | LPT |
*--------------------------------*--------------------------------*
| Current Participation Rate (%) | 66.68497479 |
*--------------------------------*--------------------------------*
Of these, I believe the following can be changed manually by the permissioned keyholders:
- Protocol Paused
- Max # Active Orchestrators
- RoundLength
- RoundLockAmount
- UnbondingPeriod
- InflationChange
- TargetBondingRate