Wow. I had written a really nice followup post, which apparently took longer than the login timeout. When I clicked to post the quick reply I was informed that I wasn't logged in, and all my text editing was gone! This has happened to me before in other vBulletin forums, and either I have to remember to click "Remember Me" in the login, or copy my work to the clipboard first, or the forum needs an autosave (I've seen this in other vBulletin forums).
But is there any way (for instance, quickly, right after this happens) to recover one's work from the browser in some way? I typically use Chrome.
As soon as my temper cools off I may attempt the post again!