While this is true, I would do this to add a little extra warmth when surfing in the cold waters on the central coast. As long as I gave my suit a good rinse after, it was never a problem.

And it's a good thing that they aren't porous, or they'd be pretty bad at keeping people warm!

I don't surf, but I had a scuba certification when I was younger. My instructor told us to pee in our suits if we were getting into cold waters or found ourselves having passed through a particularly unpleasant thermocline. It saves a few minutes of discomfort while you wait for your body to heat the water trapped by your suit. It doesn't seem to add any additional cleaning steps either.

You may not have enjoyed the experience, but many excellent surfers pee in their wetsuits.

All I do is pee in my suit, just flush it!