The way they quote Jane Austen.
#BotSpot
medium.com/dfrlab/botspot…
What's interesting is the creation dates, and the way the screen names are different from the handles (e.g. @ermolaeva_olya / "Gladys Flatcher").
These look like hijacked accounts.
Other phrases they used returned over 75,000 accounts, but the phrases were less unique.
Even the lower number makes a big botnet.