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I'm using keychain on a daily basis and it is great. But it is definitely more difficult to compromise your owner key when you can't see and copy it ;) I will change my owner's keys for sure. Better safe than sorry ;)

And yes, it should open some doors for "ledger" people. It will be much easier and safer to keep Hive as cold storage.

Should be also difficult to compromise the owner key if you store it on whatever place :) and use only keychain with posting/active

It is infinitely harder to compromise it when you don't have your private key ;)

On keychain is also encrypted with sha256 right? But sure for some people, it has a huge advantage, special if hive becomes more mainstream.

It is encrypted, but there is a significant difference: for Hive Keychain you need to store your private key somewhere to be able to import it. You need to write it down or copy it from your notepad or key vault, or whatever. You're using your private key in a digital form somehow and you might be a target for some digital thefts. When using a hardware wallet you never receive your private key - it never leaves your hw device. The device stores it and use it to sign transactions.

True.

It is very useful and good to have it as an option on hive.

Dummy Proof. Can the Ledger then be used as a PKSA for HAS of @arcange?

Yes, it could be used as a PKSA.
The main problem is that you currently have to manually confirm each transaction.
If this is not a problem when there are actually some financial transactions, it is different for the social aspect of the platform. It would be extremely tedious to confirm every comment or vote.

That sounds logical, but some upvotes are tremendous and I'd like to confirm a 50bucks upvote for sure (if I had one) :))