As long as what is said is the truth, there is no libel. In a court action, for a libel or slander suit to win, one side has to prove the allegation is false, or is unable to prove that it is true to the courts satisfaction.
If someone says something they know to be true (i.e. personal experience) the opposing side will have to prove that it is not true.
Courts are different in each state, although some basics are common to all. There has to be a preponderance of evidence to prove a point. The amount may differ from state to state.
A common demoninator to all is truth and evidence. If it's true and you can prove it, they can't win.
That dosen't mean that they can't make life miserable. A law suit can be filed at any time for any reason. But filing doesn't mean winning.
My partner was sued for 40 million for causing great emotional embarassment to a dead body when he took photographs of the deceased at the Morgue when we both worked in the Crime Lab. Case was filed, but that was as far as it went. (I understand the Judge got a big laugh out if it)
From personal experience, I tell people to make sure they spell the name right, and to remember that counter suits can be a B****.
If you're telling the truth, you can't be harmed. Some people and organizations threaten and/or file law suits to intimidate people into submission. It's called using the system. Unfortunately this does happen.
Back in the 70's, a white supremacist group offered a large cash reward for anyone that could prove the Holocast really happened, that it wasn't a lie and the photo's weren't doctored. One survivor challeneged them, went to court and showed the brand on their arm. When the group couldn't pay up, the plantiff got themselves a "clubhouse" in lieu of cash.
A little off topic, but, the State of California says you can not sue a person for making a report of child abuse, unless it can be proven that the report is knowingly false. Knowing how sue happy people are, the State also provides a fund to pay for attorney fees for people that are sued for reporting. To my knowledge, the fund has never been touched, but it shows that the State acknowledges lawsuits happen even when there is no basis for it or a law prohibiting it.
I can't speak for other States, but, according to the District Attorney's Office in my county, for a lander or libel law suit to go forward, a party has to show that they have been affected monetarily.
I don't know where all the parties reside, but I would think an inter-state or international law suit would be expensive.
My best advice at this point, on this topic, is to not respond to the baiting.