Sending beneficiaries to another account, then powering those up, this won't count as you having earned it on the account you trying to improve your KE on. Powering down witness rewards and powering those up on the account you want to improve your KE on, etc. Delegating your HP away so you don't earn curation rewards but liquid hive instead. Probably some more ways.
RE: What value do you bring to the chain?