I just checked one literally at random, the one about the conductor stabbing himself through the hand with his baton during a performance. It has been confirmed by Wikipedia and two other sources, although I can't vouch for Wikipedia's accuracy, nor for the independence of the sources.

One sample does not a proof make, and the pural of "anecdote" is not "data." However, some of the items do check out as true.

I personally think it's a good starting point for talking to kids and asking whether you can believe everything you read on the internet. I also find it amusing.

YMMV.