confusion about fusion looks to be about acoustic fusion and not cold fusion.
acoustic fusion has only been around for about four years. The first results were positive. The second results were not so positive. But recently the results have been positive. The science with acoustic fusion doesn't seem quite as mysterious as it does with cold fusion.
The renewed interest in cold fusion has been building for the past year. The "cold fusion" meme looks like it bottomed out in late 2003.
The graph -
http://www.realmeme.com/miner/other/coldfusionDejanews.png
The methodology -
http://www.realmeme.com/miner/
Seems to me you either end up with some helium or you don't. A good high school chemistry/physics student should be able to prove that quite nicely, all it is is a simple spectrogram.