I noticed despite completing all the quests in Modoc that the status stayed on "Liked" but did not reach the "Idolized" one. However I remember while playing some years ago that it was possible to be "Idolized". So am I missing something? Is there something I messed up with such as the quest of the watch or could it be the quest with the Slags?

Only way to get Idolized on Modoc is to complete all quests that affect Modoc in Modoc's favor. Most important are establishing peaceful relations between Modoc and the Slags, which requires finding Karl in the Den, getting his story, and reporting it back within 31 days. To do that you''d best get a working car well in advance of doing the quest.

Thanks for you replies guys. I am thinking that probably the fact that I talked to the dude at the Den about his story might have affected my reputation in Modoc, because I did not have to travel back to the Den for the quest concerning the Slags.