From another thread I saw that profiles get deleted if GC API comes back saying the profile does not exist. However this is possibly not quite true, or, at least, does not apply to pick lists. What about users who have had a GC name change? I have been "the Seagnoid" for a long time now, and still "the seagnoid" shows in the profile name pick lists. Similarly, "etherlord", "Etherlord" and "Etherlord clan" are invalid, "Etherlord Clan" is correct. Try typing in "the s" or "eth" into a profile name field to see this.
If when selecting a profile and getting no response back (In fact we get the erroneous message "Profile name is required" rather than a more useful "Invalid profile name selected") could PGC please delete the invalid profile name from the pick lists.
Low priority. Integrating lab caches is much more important!