Except that the tweet was pretty absolute. He could have had a reply tweet with something like "unless you have to or you're doing a hobby project." I took issue with the absolutism.
Those qualifications are going to hold for any advice about technology.
You can even justify using malbolge for your hobby project with "I like it" or "It's just for fun".
If your company is only going to pay you for producing malbolge code, then you write malbolge or quit. If you decide to stay, then trying to change their mind might be a good idea if you can spare the effort.
