Since nobody else has commented along these lines, I'm just gonna say this. If someone wants to have multiple accounts and post multiple things from different accounts, as long as those posts aren't plagiarized etc, I don't see any issue with that. It could be seen as milking Steem but the stakeowners of Steem get to decide what to do with their votes, for better or for worse. Their own votes ultimately influence the value of the network and thus their own stake in it.