> Can we redirect to the main proposals page when someone attempts to
> load the add a proposal page?
>
It already does this.
> We had at least one person go through the entire process of writing
> the proposal only to then find out it was past the deadline. Ugh.
>
If you mean Hurricane McEwan, I think there's some confusion and I'll
try to figure out what happened. He already successfully submitted a
proposal for " OpenStreetMap: contributing to open data through mapping"
on April 8th, so I don't understand why he wanted to submit a duplicate.
There also should be no way for a normal user to see the new proposal
form once the deadline passes.
-igal