I notice on this forum that people make all sorts of crazy predictions about how a team's season will progress just from the shape of the wheelnut of a car. These kind of posts bring down the quality of the thread and annoy moderators as they're not based on any of the engineering principles that this forum values.
(edit forgot to add: When people make predictions the up-voting system for posts isn't useful as we can't tell whether the prediction, no matter how ridiculous, can will be true or not.)
As a deterrent to making these kind of posts, I was wondering whether we could hold people to these predictions using a small table or spreadsheet. For example, if someone says that STR are going to beat real RBR this season because of their new quadruple-threaded wheelnuts, we could mark in a spreadsheet a link to the prediction, username and it's due date which in this example would be the end of the season.
It can be short-term predictions too, for example when people were saying <10 cars would finish Melbourne 2014 there would have been some red faces afterwards.
We can then review these predictions and remind the poster that they're sprouting crap with no more accuracy than the local newspaper's astrology column.
However my intention for this is not so much to tell people they're wrong, or to find out who is better at predictions as that's a bit rude. It's intention would be to act as a deterrent.
As people are unlikely to put these predictions into the spreadsheet themselves (because finding out you're wrong is quite embarassing), other forum users could do it for them. Knowing that they might be reminded of their wild predictions might deter them from making that kind of post in the first place. Or at least they can re-adjust their post to be an observation of the wheelnuts and remove the prediction part.
We would need to carefully craft some rules around what predictions can be made so we don't end up with posters saying "my prediction percentage is better than yours" or somesuch as that's rude. Ideally the best prediction ratio would be 0 out of 0 and a reduction of those rubbish posts!