Thank you @deborim, your post actually widen my eye as I never thought become curator can earn some SBD or STEEM too, really good information here.
Regarding delegate or selling SP to smartsteem, what is the minimum SP you will recommend one must have in their account so that they still able upvote some contents? 50,100,500? Of course, right now I don't so have much yet, just asking for future references.
You can delegate at any amount it's up to you :) @williamsyee. Smartsteem has a calculator where you can calculate your profit after delegation. Sure, it's not much at first (low SP, lower payout- makes sense) but it's better than nothing ... works very much like an FD.