> The best numbers I'm seeing for calcium and magnesium indicate that it's only about 10% daily recommended dose in 2L of tap water. I'm pretty confident I'm eating enough veggies to make up for that loss. Also I'm a salt fiend so I get plenty of that from my food.

It's not about nutritional intake, but the acute effects of ingesting it. If you put cells in distilled water, the cells absorb water due to osmosis and rupture. There may be some minor risk of chronic damage accumulated to the upper digestive tract (though I'm not an expert).

> I find the water from my still tastes actually really good. It's silky smooth, nothing like distilled water that's been sitting in a gross plastic jug for weeks.

Does it actually taste, or do you just enjoy not having a taste? If it has a taste, it is not entirely distilled; there are residual minerals and substances in it (which negate the potential risks of drinking it, at least from the previous point). However, that kind of defeats the "distilled" aspect of it...