Dear analytic team ;),

I'd like to know if the policy about promotional user names solve real problem or if this problem was only anticipated in 2007.
Is it possible to get statistic which distinguish between article visitors and people which can see potential promotion names i.e. discussion + history of the article + history of discussion? It'd by ideal exclude editors (it's hard to influence a persons familiar with the subject contrariwise they've be annoyed by promoting) but I don't believe it would be a significant difference.
Can you help me or can you direct me into the right way, please?