Personally I don't have a problem with someone NOT using "half-elf" as a keyword when creating a half-elven character which otherwise LOOKS human (or elven, although not many seem to try it that way). One or two staff members have held more strictly to the statement that your race must be included in your keywords, regardless of anything else, when reviewing applications -- however, we have since come to the consensus that not including half-elf can be perfectly OK.
For the sake of interest, the very first time I used assess -v on an apparent human and got back something about blahblah "for their race", it turned out to be some sort of demonchild. At any rate, I would expect people to treat a character based on what they see and how the character acts, rather than the output of assess -v, which is meant to be a loose/crude comparison at best.
-Savak