A few threads have been started (http://wordpress.org/support/topic/174098#post-752609, http://wordpress.org/support/topic/174181?replies=5, http://wordpress.org/support/topic/173502?replies=3) regarding issues people have been having with the admin editor and "possibly" KSES.
This has not been confirmed by any higher ups at WP. I think everyone would appreciate a confirmation that this is indeed a feature of WP 2.5.1. It seems everyone agrees that people given Author level access at the very least (and I think even Contributors) should not be subject to the KSES filter where of course commenters should be.
However, as this seems to be new in 2.5.1, I at least would like confirmation that there is not something wrong internally to WP and that this was intentional. If it was, I would appreciate a way to configure and or turn of this feature.
Thank you for your help and keep turning out this tremendous product!
Timmy V.