many of the issues are due to corrosion where the dissimilar metal adjuster screw (and assembly) and the alum casting meet...
I don't think anodising solves these issues much either. Alu oxide is conducting and hence galvaic corrosion will progress much like it would with a non-anodised element. This has also been my experience with rivets and eyestraps on alu tubes both anodised and non-anodised. There maybe some measureable difference but not much in a practical sense.
Wouter
