Niel, Since we are talking about Dennes issue you here is an analogy. Read this post where this guy clearly calls Indians and Sri Lankans Racists but everyone ignored it.
Now sometime back I had started a thread 'Another Australian Another Honest mistake' ( basically in response to zillions of posts bashing Ganguly calling him as cheat) and that got me an indirect warning.
Does that mean that the Cricketweb Mods are racists - NO
But are they inconsistent - HELL YES. If I had said that 'South Africans & Austrlians are the most racist people playing cricket' everyone would have jumped on my and I would have got another warning.
The point is - Was Dennes Racist,NO, But was he inconsistent in handing out the warnings, Yes.