Yes, it's hard to rent out low level cards on the market, so the account delegation makes a lot of sense. I'm going to be doing more of that myself.
And you can thank @tcpolymath for the .scot ideas. I like being able to upvote by SCOT rather than doing all in one. A post might be fine for STEEM but off-topic for SPT. Having the accounts split gives me that flexibility at the cost of sometimes being a pain in the ass and sometimes replying from the wrong account!