Presentations you need to avoid.
Banners on Unsupported Ideas!
Because yeah, even though your idea of temperature got 34 no supports, we need a banner, since this unsupported thread needs even more attention! Seriously, why would you do this? It's just like bumping your bad threads, you're only bringing more negative attention to your thread! Plus, it can lead people to believe that you thought your idea was somehow good so you made a banner since you think it will now get positive attention.