Yes actually I already had those blocked but turns out that I had Elon's but this title has Elon’s, different quote characters ' and ’ so that's why it didn't work. Funny thing, after adding that keyword I couldn't come back to reply and I thought the post was deleted, had to remove it just so I can access the post again.

I use Sync for lemmy on Android, it has a nice option where you can add a list of keywords and it hides posts that have it in the title.