Unless you hyperfocus on the myriad various possibilities and get into analysis paralysis, which since this is still a vague theoretical issue in this scenario is very easy to do.
They don't care. Honestly they are fighting a massive bot/spam problem. A good chance 90% of your wifes "followers" were bots. Explain this to her and go live your best life.
https://www.reddit.com/r/ukdrill/