A lot of applicants are just flat-out ignoring those requests (more the second than the first), either because they find them inconvenient, or because they're not aware of them.

What do you guys think of a feature that would let the OP of a topic specify some "banner" text that would appear at the top and bottom of every page of that thread (maybe in a colored box, or something)?
I don't actually catch your solution in your minds, my bad English perhaps.

I got the problem you described and if I was you, I would go with a solution as follows
- Whenever a poster make a post in a signature campaign thread, they will get a pop-up or red notification like the forum does sometimes like: "Pay attention on the last message from the manager: [quoted message of manager]"
- If you only filter the last message from manager, I believe the notification will sometimes be right, sometimes be wrong. Because the last manager message can be about term changes, application approvals, payment announcement, joke etc.
- If you can something to filter it further, it will be better but I am unsure it is possible to code.
You can code a filter to ignore any message from manager with these words that is for application approvals.
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My dumb idea.
