In addition to Phillip's comments, I'll also add that literally milliseconds matter and the first few seconds of unlocking is usually fast and furious like a shark frenzy. Hence the typical use of the term "Sharks" when it comes to Fiddleback Fridays. So if it opens and you begin typing out your response, you likely risk not getting it. A much safer bet is to preview the thread, pick what you like and copy that text description into Notepad or something. Add "I'll take" in front of it and copy the whole thing. Then at unlock time (3:00 Eastern sharp) you'll want to be hitting the F5 refresh key like crazy so you get as close as possible to loading that page when replies are possible. Go to the bottom, paste your response and hit Post Reply. Observe and see if you came in 1st or 6th for that knife.
Yes, it might seem somewhat crazy and competitive but .... there is fun and adrenaline involved too, sometimes frustration. You couldn't happen upon a nicer group of folks and friends though.
Good luck sharking!