Tamara steps up and comments about the Loaded Chamber Indicator here, in typical Tam fashion.
Needless to say, she's not a fan of that particular widget.
Jay G agrees with her here, and offers some other items that he thinks are useless "features".
I agree more with the rest of Jay's list.
The LCI, to me, is one of those "that could be slightly helpful" items. Not to take the place of Col Cooper's Rule 1 (All guns are always loaded), but rather as a nice "on the fly" check ("Did I remember to chamber a round when I got dressed?") that doesn't require an actual press-check.
Not to say this particular widget is always well executed: I've seen some that had the utility (and aesthetics) of tits on the proverbial boar. But others (thinking of the Beretta 92 and Walther PPK here), it was unobtrusive...
Now, some of the other things mentioned (mag disconnect???), are true travesties and sins in the eyes of the lord...