Trending topic is a bit of a misnomer. Twitter isn't identifying "topics" here, per se; they're just extracting the most common substrings verbatim from recent

Trending topic is a bit of a misnomer. Twitter isn't identifying "topics" here, per se; they're just extracting the most common substrings verbatim from recent tweets. A human editor might see a topic like this becoming popular and summarize it as "Synagogue Vandalism". They wouldn't just present it as "Kill All Jews" with no other context.