What does Paul say?

I decided to do a Bible study. Another one. Not one for any particular preach. Just for me. For my benefit on: what the apostle Paul says about other people in his New Testament letters. We can, if we are not careful, be loose-tongued about others in conversation or on social networking sites (even in the church).
What is the extent of slander in the New Testament? I wondered. Is there any? How should we speak of others?
The apostle Paul wrote lots of letters and mentioned lots of people by name. Most of those he mentions are worthy of praise. He speaks with characteristic warmth and real affection. When we look at the end of the book of Romans for instance we find a long list of individuals Paul wants to greet, remember and send his love too. Men and women and those in all walks of society. Great examples for others to emulate in the church in Rome and beyond.
"Greet my dear friend Epenetus, who was the first convert to Christ in the province of Asia. Greet Mary, who worked very hard for you. Greet Andronicus and Junias, my relatives who have been in prison with me. They are outstanding among the apostles, and they were in Christ before I was. Greet Ampliatus, whom I love in the Lord. Greet Urbanus, our fellow worker in Christ, and my dear friend Stachys." Romans 16:9. What a privelege to be on the apsotle Paul's greet list!
My overriding sense is that Paul wants to bless, build up, encourage, even boast about lots of individuals - individuals he clearly loves and missess.
Very occasionally Paul warns his readers about someone. He mentions them by name as if to warn his readers not to follow their example.
"Some have rejected these and so have shipwrecked their faith. Among them are Hymenaeus and Alexander". 1 Timothy 1:19. In 2 Timothy we read that "Alexander the metal-worker did me a great deal of harm".
There appear to be however, by my reckoning, only 5 instances in Paul's letters of him writing in any negative manner about anyone (Hymanenus, Alexander, Demas, Euodia, Syntyche and perhaps John Mark) and even when he does it is laced with deep regret and longing. By contrast he mentions some 90 other individuals in his letters who he commends or sends his love to. What a great example.
Let's be like the apostle Paul who, when mentioning others, speaks well of them, commending them to others, praising them and expressing his love.