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There's a difference between voting on posts and voting for witnesses. One is separate from the other. You can either vote for witnesses directly or you can select a proxy which your account will mirror and vote as they vote.

So, i voted for a witness (@teamsteem) and now you are the second one in https://steemit.com/~witnesses

Is that supposed to be enough?

I also upvote for @steemitboard when i see it in peoples comments (also followed you all).

Upvoting a comment or post is different than giving a witness vote. See the article I link to in the original post for more information. You can vote for up to 30 witnesses, if you like. It's up to you.