People got paid to share news/article from news media? I was sure it's clever way to fulfill their signature campaign rules.
But it's pretty much useless idea without limitation such as only Member/Copper Member and above who can make thread on Press board.
If there are restrictions on which ranks are able to create threads in Press Board, I think restrictions should restrict only Full Member and above, that will reduce new threads created significantly. However, it somehow violates core approach of theymos, that he has not had plans to implement more restrictions or barriers on lower rank users, he might change in the future but for now he has not had such plans.
Another idea (that likely stupid too), is requiring small 'fee' to create threads. Each month, each user will have a quota to create threads on the most spamming boards/ childboards, for example 10 threads per month. Then, if a user hit the quota, he or she has to pay additional fees for each thread created, since the 11th thread each month. It is nearly the same suggestion on restricted all bounties have to pay in
BTC to reduce bounties from scam projects.