"Dark pattern" is one of those phrases that could be problematic,  or could just be evocative (there are some obvious race-related issues with equating dark/darker with bad/worse, but there's also a legitimate cultural attachment to light/dark as in day/night). As Jeremy puts it:

The phrase “dark pattern” is …problematic. We really don’t need to be associating darkness with negativity any more than we already do in our language and culture.

But, it's also one of those terms which don't make a huge amount of sense if you step back and look at it with fresh eyes. For both reasons, I like Jeremy's suggestion of moving towards "deceptive pattern", which is more on-the-nose as to what it's trying to convey, and avoids any lingering sense of problematic language. Good, I think I'll adopt it 👍

(I wish there was some way to pseudonym tags in Craft...)