You go, girl!!!
Writing threads can turn into an addictive hobby. Ideas can come from anywhere--something you saw or read today; an interaction you saw taking place at work, in a store, or at church; a phone conversation with a friend. Most anything can be turned into a discussion-worthy topic.
Unfortunately, sometimes, as the author of a thread, you'll get some backlash and sass thrown your way, but I know you can handle all of that. It doesn't hurt to try! Put your idea to writing and go for it!!!
And if one thread doesn't pan out the way you'd hoped... Just dust off your keyboard and keep trying. <3