I think after 4 if the same post that everyone's seen and can acknolewdge your point. I can't make the judgement here, but the other forums that I post and administrate, generally 3 or more of the "same" post counts as spamming. I can not speak for here, but I'm going ask real nice.
RandomSauce.
Can you please stop duplicate posts, it's spamming the page and it's getting really annoying. It's considered as "bumping" a post that low priority to the other posts that I can see or read. Thank you.