because it's supposed to be anonymous. There is no conspiracy theory to be had here, if you don't feel comfortable with it you don't have to enter.
Woah, who mentioned conspiracy? Must admit I skimmed over the anonymous part so I guess that make sense if you really wanted to keep it that way, but tbh it's all a bit of a faff and most other photo competitions seem to work pretty well without anonymity so I guess I'll be happy taking your last suggestion, thanks John.
As an alternative though, would it not be an easier (and quicker) idea if we allow the winner of each month (assuming this is going to be a monthly thing) to choose both the theme and winner of the following month? That way we can all just post up pics and get this thing rolling, plus it'll keep it a bit more fresh rather than just having one person choosing the theme all the time. Just a thought, anyway.