Your rule number 6 - for a long time I have been refusing to upvote those posts, but I did so because of a feeling I had about them, but had no evidence anyone else felt the same way I do. I am not saying you do, but your rule does suggest (to me) that you feel such posts are already targetted for gaining whatever support they need and it is those who fly on their own who deserve our help when their attempt is worth acknowledging.
I have been doing these small Post Promotions for way over a Year and at that time there were some contests that gave out results based on either the number of Upvotes or the amount of Payout a certain Post had. So my decision of not taking in Contest Related Posts came from the fact that if I Upvote contest related posts some people will get an unfair advantage on a Contest.
BTW my main reason for doing these Free Promotions is just so that at the end of my day I could just go through the submitted Posts and get my Daily Dose of Steemit Posts to read without having to search for it. You could say that is a little selfish on my SIde. Hehe
Selfish?
I think the majority of posters here do not read more than one or two posts...for the rest of their daily quota (so as to look caring and interested), they just set a few accounts on auto-vote, so they put in an appearance without having to go through the hassle of opening posts...and maybe having to make a few intelligent sounding comments :)
My reasons for avoiding those specific posts is that I am by nature a lone wolf. I do not like the idea of having to join and follow anyone or any community (it is what saved me from signing up at FB, when I applied I got a message saying I was approved and now I must choose who I follow (was given from 4 names to choose from). It put my back up and I ignored their emails from then onwards).
I see so many who out in the cold, on their own, would not get more than a handful of votes but by joining a community and playing according to their rules they get a healthy looking number of votes and reward for posts I would not even think of upvoting.
So as not to be influenced or lose sight of why I joined, on most of my posts and comments I either deny rewards or set a beneficiary to get the rewards - I only allow voting on specific posts to do with politics etc. My stories and poems do not allow votes.
By the way, this account will only start to be used from next month as the one I mostly use now will go into a permanent hibernation, and that style of posting also ensures no 'follower' continues following for more than a few months.
ciao