Spreading Linux misinformation is saying things about Linux that aren't true.
Examples:
These can be jokes or trolling like “You can save space by removing the system's pre-installed French language pack by running sudo rm -fr /” (disclaimer don't do this!)
Or misconceptions, such as “You probably don't have a virus even if you suspect it, due to Linux's nature viruses aren't possible” (you absolutely can)
I have seen that code block so many times, but never with the options switch around so it stands for french 😂 Thankfully in most cases these days you need to add --no-preserve-root for this command to run.
Life pro tip: always put the force flag first on any command line you write, to ensure that it's the first thing seen by everyone (including your future self) reading that command line.
I don't think these things are universal across software, but you can often put -f on its own, separate from other flags, or get in the habit of using the long --force flag.