15) No "+1" posts, if you agree strongly enough then you can post why, otherwise don't post at all, all +1 posts will be removed before enforcement will be removed, any posts afterward will be hidden. +1 posts are regarded as spam and will therefore result in a temporary ban for any repeat offenders.
This includes (but isn't limited to) +[insert random number], and "This" posts. Please make your post constructive and helpful to the community.