Can you direct me an article which explains upvotes and self upvotes and also which practices are considered flag-able by the "masters of steemit" as compared to those who don't like people who self up vote, by that I mean, Steemit has a self up vote button, but I have read a lot of blogs where people say that self voters are robbing the reward pool so they form a group of down voters and flag everyone they see who has up voted their own post, then they have a generic spam comment about flagging someone and they all up vote that comment and make crazy reward and curation rewards from a post that does't really do anything but say "i down voted these upvoters" and then they all up vote it. IF UP VOTING YOURSELF IS NOT ALLOWED WHY IS THE BUTTON AVAILABLE? please help me to understand what is acceptable and what is not acceptable with this because it seems like a total waste of time if you lose all your efforts in a spam flagging war.