Greetings, this year I created my steemit account, and I have not really understood it completely ... I usually vote at 20 minutes, but from what I read in this post it is better to vote after 30 minutes? Could you clarify that doubt? Of course then in September those 30 minutes will be reduced ...

  Another thing I want to help me, 3 times have given me downvoto, and I analyzed in the account that gave me the downvoto, are accounts that create that day and is dedicated to vote for everybody negative, is that legal? or there is an account or label where one can complain and accuse these people because I think they do it with malintention ... they are accounts exclusively for negative votes.