My two cents on these issues with commission and validators is that a health monitor for nominators could help mitigate this kind of issues.
I posted about it here Alerting nominators the moment a validator flips commission or changes identity (feedback wanted)
Initially the idea would be around notifying the nominators about commission flips but since the new referendas might solve that, i’m leaning more towards a health monitor for nominators, I think tracking these kind of information would help create validators profile so nominators don’t have to go through all this trouble.
The focus would be to notify about these topics:
- Validator self-stake drops below the minimum amount
- Validator gets chilled
- Validator earning zero or low era points
- Validator is offline
- Slash or offence recorded against the validator
- Maybe some node information like version, block height lag, and connection issues
I’d really appreciate some feedback on this, if it might solve the problem or just shove the problem under the rug