Steemit is very well organized so far (i am a new member).
I think the best way to use is like a social media site not a money making one. Money is just a BONUS for your effort if you are giving value to the site and it's users.
Another good way to give you a push is buying steem power.
But in no way don't be a spammer in every post or give always upvotes and resteems . Just do this when you feel the member deserves that .
(i didn't know so far about the bandwith you said)