A quick addition: richardman is one of many accounts belonging to a long-time scammer on Steem & Hive who usually uses fishing campaigns. When it's too good to be true, it's bound to be a scam! When there's a claim asking for your keys, it's obviously a scam...
So yes, having different keys for each blockchain is important! As a reminder, you can change your Blurt keys via BlurtWallet: https://blurtwallet.com/change_password
And when using a third-party application, dApp, bots or an open-source library, always check how the keys are managed (encryption).
I see - Like getting paid to produce written AI content ? Or being paid to belong to a group, irrlevant of content quality ?
Who's the scammER, and who's the scamEE? )...it's very difficult to tell in DPoS structures, isnt it? lol