Well, it is nice to know from the very first sentence that this writer does not know what he is talking about. AL less stiff than steel - not in this universe. Comparing a beer can to a steel can is crazy. The thickness is about ten times different.

Don't believe everything you read.

It is true that AL can only be cycled a certain amount of times. The magic here is, what constitutes a cycle? A properly designed frame will not be clicking off a cycle with every pedal stroke like people seem to think.