oLeon - 11:13 am on Jun 5, 2003 (gmt 0)

however that you do not need to cloak in google to reach a top serp

Thatīs correct, though there are a few smaller factors in ranking which could be worth to hide.
However, cloaking is an issue related not only to top ranking but to a special services you may offer to a customer: that a searcher can reach the clients site with only one click without landing on a DWP.

aren't you afraid of getting spamreported

Of course I am. But as mentioned before, if I want to offer a direct landing on the client page with only one click, the advantage of this may be and is bigger than the risk of detecting.
Most of the time it works well.