Definition - What does Troll mean?
A troll is a member of an Internet community who posts offensive, divisive and controversial comments https://www.techopedia.com/definition/429/troll
This is a new but very real phenomenon that can be very annoying, damaging, but also amusing.
There are people who build their whole reputation on tearing someone else down, and they often choose the same targets.
LinkedIn is a social media site designed for professionals but yet it is amazing how many negative trolls exist even in that professional forum, let alone Facebook, Instagram, twitter, etc.
Looking around I believe I found some useful tips on how to deal with them (plus my own experience in dealing with them), and I hope they work for you.
Hope this is useful and good luck out there because yes there be trolls!
Dr Flavius A B Akerele III