You often see a signature thread being bumped with a post from the bounty manager saying that payment for the week has been made. Immediately below that some members who see that the thread got bumped write their application, thinking that new spots are open.

Another example. A signature campaign has open spots but doesn't announce in the title which rank the spots are open for.

What comes after that are pages of applications including many ranks who aren't even accepted. For example, the bounty manager is looking for a Hero member and there are multiple applications by Full and Sr. Members.

Of course, this can't be controlled due to the fact that members refuse to read the info properly before submitting their applications, but I think it can be reduced.
By having a standard where the bounty manager changes the subject of his thread to highlight which ranks of members the spots are open for.

A recent good example of that is the following:

 
* I have intentionally removed the names of all campaigns that I used as an example because my intention is not to advertise or criticize how the individual managers do their jobs. Just an observation on my part.