It would be nice to be able to comment on Fuel Tips. I often find myself wanting to comment on posts to say, "yeah I do that too, works great" or "I'm not so sure about that tip I heard it was bad news".
Yeah, we considered that from the outset, but I've found on other sites these kinds of things often degrade into arguments and instead of having a hypermiler vs. normal driver war on the site, we decided to just approve the tips that are mostly true or true in most cases (you could argue edge cases where things don't work as expected for pretty much any tip) and use them as more of rules of thumb than host endless debates about the merits of each.