Legality of naming people who owe money?

[Logic316]

It's free speech and it's perfectly legal, as long as their claims are true. It's only considered libel or slander if somebody injures your reputation by making a deliberately false statement about you. Truth is always an absolute defense. If somebody owed you money and didn't want to pay you back, don't you think you'd have the right to tell people about it?

* According to the Wiki article below, the Brits supposedly don't respect this principle. However, an excerpt from a UK civil liberties site says this:
"It is a complete defence to an action for defamation to prove that the defamatory statement is substantially true."
http://www.yourrights.org.uk/yourrights/...ation.html