I've been using a bonded aluminum fork for the last 1 1/2 years, and don't have the history on it before I got it. So far, no issues.

I am now riding a Colnago C-40 with their rendition of bonded CF lugs and aluminum dropouts, and again no issues, but I've been riding it for a few months.

I was talking to a person yesterday with an older bonded aluminum Trek, I think. Anyway, apparently his DT shifters were were bonded on, and one fell off. He just glued it back on and it has been working for him.

Anyway, the bonded aluminum or CF seems sturdy in most cases, especially if there is some kind of a tight sleeve fit.