Should I mute everyone who uses the abbreviation "RT" in their toots?
"RT" stands for "retweet" and of course there is no such thing here on Mastodon. Here that concept is known as a "boost".
I'm guessing that most if not all toots that contain "RT" are just bots that are barfing out whatever they found on twitter.
@Pat Hmm, the question is what is your goal?
If you want to thought police everyone, you absolutely should.
If you want to engage in communication with other people, you might not want to. Because blocking is a mechanism meant to shut out people attacking you.
Using a word you do not like is not an attack, it is a habit. If you want to change habits, you need to talk to people, thus making blocking useless.