If the strings don't contain characters that help define a variable, like an underscore, how is it better practice to use curlies? It's it just for consistency? Have you had any style guides or linters critique the use of variables without them?
More than anything, I find that it's a good habit to maintain in order to avoid simple mistakes. It also makes variables easier to spot in code and maintains consistency.
Brackets make it explicit what you're trying to do. Do you want "dingbar" or do you want "dong"? I forget what the actual behavior is if you don't use brackets here, because I always use brackets for this reason now
You should use markdown's inline code (single `backtick`) and
block code
(triple backtick)
tags. They are consistent across most markdown renderers (except Reddit's, which uses four-space indentations (like, who the fuck thought that was a good idea?))