It's a personal choice. If you have an audience who are not on Hive then you need to reach them on Steem. Most people I know have moved across. In any case I have got on the Steemit naughty list so my posts won't make anything. Some were 'milking' rewards there, but now the main Steem auto-voting service has shut down they make less. There's also the factor of people powering down so their votes are smaller.

You may have seen the latest news. Steemit stealing rewards makes Steem very unappealing to most of us.