Well, I do not know if 10 SBD is too much. Actually "The Steemmarket" will adapt and adjust itself. I often see people bids much higher. I thought you just have no chance to "win" upvote this high. I thought only minnows with small voting power sells their votes to minnowbooster. But thinking this over.... Whales can sell their votes too. It makes sense. Lol I'm constantly learning :).

From my point of view:
Minnowbooster is ok (although it blacklisted me <no hard feelings, they can do what they want >) In my case MB helped me to gain reputation and gain some voting power.
I truly believe that making good content is the best way to succeed on Steemit.com, but with no reputation and no followers you can stick your GREAT CONTENT up "Y.A."

That is why MB is a great tool to make a change

You can cite me.

No, you can't.
I 've just copyrighted this slogan.
And I'm shipping t-shirts worldwide.

Everybody grab your hands and sing along!: