My Idea:
Creating . . . Steem.it Premium and why it is necessary:
I don't like member/bots who don't even read my posts and ask for an upvote and a follow.
I can only imagine these members are not serious about producing quality content.
Something has to be done, and this is the answer.
We create premium content within Steem.it.
By setting aside space that requires a level of participation, either through member acceptance, level of steempower, or a refundable deposit to qualify; we effectively cut off poor content.
It's that simple. Problem solved 
Enjoy your Steem. You are welcome.
H. G.
Example: 1)
I pay 10 sbd.
I now can activate a setting that prevents comments from others who do not pay the premium.
Example 2) I hold 25 sbd.
I can now comment on others who also hold 25 sbd and above.
(Something as small as 25 sbd would block spammers by a large percentage.
Have a look at how much Steem a spammer holds).
A new category titled "Premium" would be added. Where above posts would be seen.
Note: Premium members can still read all posts if they choose "new".
Let the spammers spam each other and see how profitable that is.
If a few spammers or bots get through we can still mute them.