This may sound silly, but wouldn't it be easier to make updates in the first post of the topic?
Usually the campaign manager will edit the title to
[Open/CFNP/Closed] which itself enough to identify the status of the campaign at any moment. But there are some exceptions like even if there is no slot left still manager would like to hire highly recognised member of the forum which may be available in the first post of the topic generally(...)
But wouldn't it be in the best interest of the campaign manager to also edit the OP with that information?
This may sound silly, but wouldn't it be easier to make updates in the first post of the topic?
(...) but the proposed idea is also good but not really necessary though cause if someone isn't reading the requirements before posting theit application then they are not fit to take a slot.
If someone doesn't even care to read the requirements, why wouldn't they even deserve to be in the campaign in the first place? Why should the forum accommodate their options to simplify the work of users (most of them) that only see the forum has a way to get some more money at the end of the month and not as a community that they could learn/take part into?
@PowerGlove: Don't take my words in a bad way. I really like what you've made for the forum so far (and what you may do in the future), but as you can see my opinion on this particular subject is to not support this suggestion. My argument for that is that a simple edit by the campaign manager on the OP should be enough for users to be aware of the rules and it is of the best interest for the campaign manager to update the OP with the rules that she/he sees that it would benefit their campaign (like the one you gave an example of).