Why not just be helpful without the repetitive image?
Exactly.
Repetitive posting is spamming. Don't be repetitive and add value with each post and there is no problem.
A good question to ask in assessing any behavior is, "What would happen if everyone did it?" If everyone posted a repetitive and/or meaningless (even if individually innocuous) comment or image on every new user, the system would be destroyed not only by the clutter but by the sheer volume of comments. If every user looked at each new user and made a careful decision about whether or not to engage based on common interests, etc. and then did engage in a meaningful manner, the system would be improved. Please consider the latter.
That's just what I put in my post on reputation. :)
Maybe these things should be discussed before a rep goes to -2 though. A flag without that discussion can be quite discouraging for someone who believes they are adding value (even if others disagree). The value is subjective and should probably be discussed, IMO.
Downvoting a post can decrease pending rewards and make it less visible. Common reasons:
Submit