Meta post I've decided to make. I enjoyed the unixporn subreddit a lot when I used reddit more. I enjoy customizing my linux de as much as the next nerd.
But you definitely shouldn't use racist slang to refer to the process.
To be clear, I didn't know the origin of the term 'ricing' until fairly recently. I was chattimg with my friend and used it to describe my de setup. They informed me that apparently it's from car customization, and is a pejorative against generally asian men who customize their car to look like a racecar.
After learning this I was sad to realize just how engrained it is in linux de customization culture. I personally have stopped using the term, and I would ask everyone here stop as well.
I'm glad you never experienced this yourself, and hope you never will. It's perfectly understandable that you don't know something like this that you haven't seen before, but I'm glad that now that you're aware of the context, you're willing to adjust your worldview to accommodate the new knowledge.
This entire conversation is honestly very Western centric, but I hope it can be useful to you in other ways as we continue adjusting the English terminology we use around technology going forward.