Point taken Lon. I have learned the hard way too many times too. I am sure it happens more than we might expect, but not very often.I think that the main issue with over-hydration probably stems from the lack of electrolytes...IE potassium, sodium and other trace minerals. This is why I like gels, instead of solid food, except a banana or dates...they gives you energy and much needed electrolytes...
What did the article say about how one feels when you over do it with h2o? What are the signs...besides a bloated belly and sloshing noises.
Anyway, I hope to never bonk, super-hydrate or dehydrate myself ever again! That is my lifelong goal for riding my bikes.