Gildor Inglorion

[Turambar]

"Clearly, Gildor could NOT stop to babysit the hobbits. Did he know for a certainty that the Black Riders were indeed actually chasing Frodo? Or did he think it more likely they were hunting Gandalf? With all his cares, concerns, and even prejudices, did he really believe the Ringwraiths were concerned with some hobbits of the Shire?"

Doesn't Gildor tell Frodo something like, "Danger is behind and in front of you, and on either side." He knew the hobbits were in danger and, although he offered them some help, basically left them to their own devices. I think that reflects the basic distrust of mortals that all elves share, probably as a result of the treachery of Ulfang et al.