That's not what it is?? lol Also I have no idea what the fuck the last sentence is supposed to be communicating.

Amp-hours are worse.

How do people dare to measure the amount of work?

Why use Joule, just use kg*m²/s².

Square meter kilograms per second per second is even more intuitive.

But more seriously, Wh and kWh is much more intuitive when determining energy consumption of your household. I don't want to calculate how many joules my fridge consumes per day!

It's not that bad. If an electric kettle runs on 500 watts, and you run it for one hour, then it consumed 500 watt-hours. What's the big deal?

In America that's pretty dang common. I have a kettle because I'm a nerd and watch Technology Connections, but it's kinda uncommon.

One could argue the same about why get another appliance (microwave) when they already have the general purpose stove that works just as well

Microwave is usually 900W while a Non-US kettle can do 3000W on a standard 240V 16A connection so it boils water more than 3x faster.

Very convenient for serving tea and instant coffee and also useful for cooking potatoes, veggies, rice, pasta by boiling water first before pouring it into a pot for a quick start.

Picking specific temperature on your kettle to make better tea 👌

I know it's usually not an issue without a really smooth container, but I'd be too afraid of superheated water to boil it in the microwave.

Interesting. I use mine almost exclusively for reheating leftovers and melting butter, using it perhaps up to four minutes a day.

A magnetron is usually only a bit above 50% efficiency when converting electricity to microwaves (according to Wikipedia, that is), so I had actually assumed the difference to be even bigger.

Electric elements are actually pretty efficient. Usually the heat generated by an electric current is the inefficiency (as well as sound, radiation, and vibrations), but for a heating element you're using that heat waste. It still can generate sound, radiation, and vibrations, so it's not 100% efficient, but you can do well just sticking an element in the middle of the thing you want to heat, especially if it's a fluid. If you don't stick it in the middle, then you lose heat in all the directions away from the thing you're trying to heat.

Heat pipes are more efficient because the heat isn't being generated but just moved. Natural gas (or fossil fuels) seems more efficient but is actually just cheaper, as it used energy that was stored a long time ago.

Even induction burners still lose heat from the bottom of the pot into the induction burner itself, hence why they usually have cooling fans. And the reason why they are more efficient than radiative heat or those spiral elements is because they create the heat closer to the food using an electric current in the bottom of the pot/pan itself, though even the induction part has additional losses.

It may be grammatically correct in whatever dialect of English the author speaks. As an American I would say it reads weird to me too though.

I think the punchline would be better as, "That's the most efficient way to cook it!"

Depends on whether you're in a country that washes eggs before sale too get rid of the cloaca residue or one that keeps it on so eggs can be kept safely at room temperature. Unwashed eggs will have faeces on their shells, and you might not want to cook noodles in faeces.