@nimbulan what thread are you subscribed to that it happened on?
Owner of TerraForums, FlyTrapShop.com, and cpforums.org.
Support FlyTrapShop, support TerraForums! www.flytrapshop.com
I'm not sure if this is related but I've been seeing the forum automatically do this recently, and has happened to me a couple times. I always get double-emailed about it. When it happens to me, it takes a long time to submit the post, then pops up a message "are you sure you want to leave the page?" like I'd typed something then tried to close the browser tab. I hit yes, because I know the post went through despite the message.
TF Rendezvous in Portland, OR
In case he edits the post, here's a screenshot: