I also include my user profile Temp folder and when having CCleaner itself make the entry it looks different than what you've made, i.e; CCleaner uses the full actual path in C:\ and doesn't use things like %userprofile%
Now if you perform PC maintenance on multiple/different computers, etc., you can make a winapp2.ini entry that will allow the usage of %userprofile%, etc.
Yup, sadly include/exclude does not except enviromental variables
(hint hint developers ;p )
Good timing on this thread, I came today to find the answer for this very question.
I suppose expanding environment variables for Custom Files and Folders doesn't work well when 1) the only user interface way of adding these is to choose an individual file or folder, and 2) going to a text file, being advanced, should be done in a way that the entry can't be clobbered by the aforementioned user interface!